diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..77edc79
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+# Ignore local network presets
+network-presets.json
diff --git a/NetworkAdapter.psm1 b/NetworkAdapter.psm1
new file mode 100644
index 0000000..01d3397
--- /dev/null
+++ b/NetworkAdapter.psm1
@@ -0,0 +1,778 @@
+function Show-Header {
+    Clear-Host
+    Write-Host "============================================" -ForegroundColor Cyan
+    Write-Host "   Network Adapter Configuration Tool" -ForegroundColor Cyan
+    Write-Host "============================================" -ForegroundColor Cyan
+    Write-Host ""
+}
+
+function Get-AdapterChoice {
+    Show-Header
+    Write-Host "Available Network Adapters:" -ForegroundColor Yellow
+    Write-Host ""
+
+    while ($true) {
+        $adapters = Get-NetAdapter | Where-Object { $_.Status -ne 'Disabled' }
+
+        if ($adapters.Count -eq 0) {
+            Write-Host "No active network adapters found!" -ForegroundColor Red
+            Read-Host "Press Enter to exit"
+            exit
+        }
+
+        $index = 1
+        foreach ($adapter in $adapters) {
+            $status = if ($adapter.Status -eq 'Up') { 
+                "[CONNECTED]" 
+            } else { 
+                "[" + $adapter.Status.ToUpper() + "]" 
+            }
+
+            # Get IP address
+            $ipv4 = Get-NetIPAddress -InterfaceIndex $adapter.InterfaceIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue
+            $ipAddress = if ($ipv4) { $ipv4.IPAddress } else { "No IP" }
+
+            # Get MAC address in both formats
+            $macWindows = $adapter.MacAddress
+            $macLinux = $macWindows -replace '-', ':'
+
+            Write-Host "$index. $($adapter.Name)" -ForegroundColor White
+
+            # Colored description + status
+            $statusLabel = if ($adapter.Status -eq 'Up') { 'CONNECTED' } else { $adapter.Status.ToUpper() }
+            if ($adapter.Status -eq 'Up') { $statusColor = 'Green' }
+            elseif ($adapter.Status -in @('Down','NotPresent','Not Present')) { $statusColor = 'Red' }
+            else { $statusColor = 'Yellow' }
+
+            Write-Host "    $($adapter.InterfaceDescription) " -ForegroundColor Gray -NoNewline
+            Write-Host "[$statusLabel]" -ForegroundColor $statusColor
+
+            # Colored IP and MAC display
+            if ($ipv4) {
+                Write-Host "    IP: $ipAddress" -ForegroundColor Cyan -NoNewline
+            } else {
+                Write-Host "    IP: No IP" -ForegroundColor DarkYellow -NoNewline
+            }
+            Write-Host " | MAC: $macWindows ($macLinux)" -ForegroundColor DarkGray
+            $index++
+        }
+
+        Write-Host ""
+        Write-Host "R. Refresh list" -ForegroundColor White
+        Write-Host "P. Add/Remove from System PATH" -ForegroundColor White
+        Write-Host "0. Exit" -ForegroundColor Gray
+        Write-Host ""
+
+        do {
+            $choice = Read-Host "Select adapter number"
+            if ($choice -eq '0') {
+                exit
+            }
+            if ($choice -in @('P','p')) {
+                Add-ToSystemPath
+                return $null
+            }
+            if ($choice -in @('R','r')) {
+                break
+            }
+
+            if ($choice -match '^[0-9]+$') {
+                $choiceNum = [int]$choice
+            } else {
+                $choiceNum = -1
+            }
+        } while ($choiceNum -lt 1 -or $choiceNum -gt $adapters.Count)
+
+        if ($choice -in @('R','r')) {
+            Clear-Host
+            Show-Header
+            continue
+        }
+
+        return $adapters[$choiceNum - 1]
+    }
+}
+
+function Show-AdapterInfo {
+    param (
+        [Parameter(Mandatory=$true)]
+        $Adapter
+    )
+    
+    Show-Header
+    Write-Host "Adapter: $($Adapter.Name)" -ForegroundColor Green
+    Write-Host "Description: $($Adapter.InterfaceDescription)" -ForegroundColor White
+    Write-Host "Status: $($Adapter.Status)" -ForegroundColor $(if ($Adapter.Status -eq 'Up') { 'Green' } else { 'Yellow' })
+    Write-Host ""
+    
+    Write-Host "Hardware Information:" -ForegroundColor Yellow
+    $macWindows = $Adapter.MacAddress
+    $macLinux = $macWindows -replace '-', ':'
+    Write-Host "  MAC Address: $macWindows (Windows)" -ForegroundColor White
+    Write-Host "  MAC Address: $macLinux (Linux/Unix)" -ForegroundColor White
+    Write-Host "  Link Speed: $($Adapter.LinkSpeed)" -ForegroundColor White
+    Write-Host ""
+    
+    $ipConfig = Get-NetIPConfiguration -InterfaceIndex $Adapter.InterfaceIndex -ErrorAction SilentlyContinue
+    $ipv4 = Get-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue
+    
+    Write-Host "IPv4 Configuration:" -ForegroundColor Yellow
+    
+    if ($ipv4) {
+        Write-Host "  IP Address: $($ipv4.IPAddress)" -ForegroundColor White
+        Write-Host "  Subnet Prefix Length: $($ipv4.PrefixLength) ($(Convert-PrefixToSubnetMask $ipv4.PrefixLength))" -ForegroundColor White
+        Write-Host "  DHCP Enabled: $($ipv4.PrefixOrigin -eq 'Dhcp')" -ForegroundColor White
+    } else {
+        Write-Host "  IP Address: Not configured" -ForegroundColor Gray
+    }
+    
+    if ($ipConfig.IPv4DefaultGateway) {
+        Write-Host "  Default Gateway: $($ipConfig.IPv4DefaultGateway.NextHop)" -ForegroundColor White
+    } else {
+        Write-Host "  Default Gateway: Not configured" -ForegroundColor Gray
+    }
+    
+    $dnsServers = Get-DnsClientServerAddress -InterfaceIndex $Adapter.InterfaceIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue
+    if ($dnsServers -and $dnsServers.ServerAddresses) {
+        Write-Host "  DNS Servers:" -ForegroundColor White
+        foreach ($dns in $dnsServers.ServerAddresses) {
+            Write-Host "    - $dns" -ForegroundColor White
+        }
+    } else {
+        Write-Host "  DNS Servers: Not configured" -ForegroundColor Gray
+    }
+    
+    Write-Host ""
+
+    # Adapter details menu: include DHCP, manual IP, lease refresh, DNS flush and presets
+    while ($true) {
+        Write-Host "Options:" -ForegroundColor Yellow
+        Write-Host "1. Set DHCP (enable DHCP on adapter)" -ForegroundColor White
+        Write-Host "2. Set Manual IP" -ForegroundColor White
+        Write-Host "3. Refresh DHCP lease (release/renew)" -ForegroundColor White
+        Write-Host "4. Flush DNS cache" -ForegroundColor White
+        Write-Host "5. Presets" -ForegroundColor White
+        Write-Host "0. Back" -ForegroundColor Gray
+        Write-Host ""
+
+        $sel = Read-Host "Select option"
+        switch ($sel) {
+            '0' { break }
+            '1' {
+                Set-DHCPConfiguration -Adapter $Adapter
+                # refresh adapter object
+                $Adapter = Get-NetAdapter -InterfaceIndex $Adapter.InterfaceIndex -ErrorAction SilentlyContinue
+                Clear-Host
+                Show-Header
+                Write-Host "Adapter: $($Adapter.Name)" -ForegroundColor Green
+                continue
+            }
+            '2' {
+                Set-ManualConfiguration -Adapter $Adapter
+                $Adapter = Get-NetAdapter -InterfaceIndex $Adapter.InterfaceIndex -ErrorAction SilentlyContinue
+                Clear-Host
+                Show-Header
+                Write-Host "Adapter: $($Adapter.Name)" -ForegroundColor Green
+                continue
+            }
+            '3' {
+                Refresh-DHCPLease -Adapter $Adapter
+                $Adapter = Get-NetAdapter -InterfaceIndex $Adapter.InterfaceIndex -ErrorAction SilentlyContinue
+                Clear-Host
+                Show-Header
+                Write-Host "Adapter: $($Adapter.Name)" -ForegroundColor Green
+                continue
+            }
+            '4' {
+                Flush-DNS
+                Clear-Host
+                Show-Header
+                Write-Host "Adapter: $($Adapter.Name)" -ForegroundColor Green
+                continue
+            }
+            '5' {
+                Show-PresetsMenu -Adapter $Adapter
+                $Adapter = Get-NetAdapter -InterfaceIndex $Adapter.InterfaceIndex -ErrorAction SilentlyContinue
+                Clear-Host
+                Show-Header
+                Write-Host "Adapter: $($Adapter.Name)" -ForegroundColor Green
+                continue
+            }
+            default {
+                Write-Host "Invalid selection" -ForegroundColor Red
+                Start-Sleep -Seconds 1
+                Clear-Host
+                Show-Header
+                Write-Host "Adapter: $($Adapter.Name)" -ForegroundColor Green
+                continue
+            }
+        }
+    }
+}
+
+function Convert-PrefixToSubnetMask {
+    param([int]$PrefixLength)
+    
+    $mask = ([Math]::Pow(2, 32) - [Math]::Pow(2, (32 - $PrefixLength)))
+    $bytes = [BitConverter]::GetBytes([UInt32]$mask)
+    [Array]::Reverse($bytes)
+    return ($bytes -join '.')
+}
+
+function Convert-SubnetMaskToPrefix {
+    param([string]$SubnetMask)
+    
+    $octets = $SubnetMask -split '\.'
+    $binaryString = ''
+    foreach ($octet in $octets) {
+        $binaryString += [Convert]::ToString([int]$octet, 2).PadLeft(8, '0')
+    }
+    return ($binaryString.ToCharArray() | Where-Object { $_ -eq '1' }).Count
+}
+
+function Add-ToSystemPath {
+    Write-Host ""
+    Write-Host "Add NetworkConfig to System PATH" -ForegroundColor Yellow
+    Write-Host "="*50 -ForegroundColor Yellow
+    Write-Host ""
+    
+    $scriptPath = Split-Path -Parent $MyInvocation.MyCommand.Path
+    
+    # Check current PATH
+    $userPath = [Environment]::GetEnvironmentVariable('Path', 'User')
+    $machinePath = [Environment]::GetEnvironmentVariable('Path', 'Machine')
+    
+    $isInUserPath = $userPath -split ';' | Where-Object { $_ -eq $scriptPath }
+    $isInMachinePath = $machinePath -split ';' | Where-Object { $_ -eq $scriptPath }
+    
+    Write-Host "Script Location: $scriptPath" -ForegroundColor Cyan
+    Write-Host ""
+    
+    if ($isInUserPath) {
+        Write-Host "✓ Already in User PATH" -ForegroundColor Green
+    }
+    if ($isInMachinePath) {
+        Write-Host "✓ Already in System PATH" -ForegroundColor Green
+    }
+    
+    if ($isInUserPath -or $isInMachinePath) {
+        Write-Host ""
+        Write-Host "Options:" -ForegroundColor Yellow
+        Write-Host "1. Remove from User PATH" -ForegroundColor White
+        Write-Host "2. Remove from System PATH" -ForegroundColor White
+        Write-Host "0. Cancel" -ForegroundColor Gray
+        Write-Host ""
+        
+        $choice = Read-Host "Select option"
+        
+        switch ($choice) {
+            '1' {
+                if ($isInUserPath) {
+                    try {
+                        $newPath = ($userPath -split ';' | Where-Object { $_ -ne $scriptPath }) -join ';'
+                        [Environment]::SetEnvironmentVariable('Path', $newPath, 'User')
+                        Write-Host "Successfully removed from User PATH!" -ForegroundColor Green
+                        Write-Host "You may need to restart your terminals for changes to take effect." -ForegroundColor Yellow
+                    }
+                    catch {
+                        Write-Host "Error removing from User PATH: $($_.Exception.Message)" -ForegroundColor Red
+                    }
+                } else {
+                    Write-Host "Not found in User PATH." -ForegroundColor Yellow
+                }
+            }
+            '2' {
+                if ($isInMachinePath) {
+                    try {
+                        $newPath = ($machinePath -split ';' | Where-Object { $_ -ne $scriptPath }) -join ';'
+                        [Environment]::SetEnvironmentVariable('Path', $newPath, 'Machine')
+                        Write-Host "Successfully removed from System PATH!" -ForegroundColor Green
+                        Write-Host "You may need to restart your terminals for changes to take effect." -ForegroundColor Yellow
+                    }
+                    catch {
+                        Write-Host "Error removing from System PATH: $($_.Exception.Message)" -ForegroundColor Red
+                    }
+                } else {
+                    Write-Host "Not found in System PATH." -ForegroundColor Yellow
+                }
+            }
+        }
+    } else {
+        Write-Host "Not currently in PATH." -ForegroundColor Gray
+        Write-Host ""
+        Write-Host "Where would you like to add it?" -ForegroundColor Yellow
+        Write-Host "1. User PATH (current user only)" -ForegroundColor White
+        Write-Host "2. System PATH (all users - requires admin)" -ForegroundColor White
+        Write-Host "0. Cancel" -ForegroundColor Gray
+        Write-Host ""
+        
+        $choice = Read-Host "Select option"
+        
+        switch ($choice) {
+            '1' {
+                try {
+                    $newPath = $userPath.TrimEnd(';') + ';' + $scriptPath
+                    [Environment]::SetEnvironmentVariable('Path', $newPath, 'User')
+                    Write-Host "Successfully added to User PATH!" -ForegroundColor Green
+                    Write-Host "You can now run 'NetworkConfig' from any terminal." -ForegroundColor Green
+                    Write-Host "You may need to restart your terminals for changes to take effect." -ForegroundColor Yellow
+                }
+                catch {
+                    Write-Host "Error adding to User PATH: $($_.Exception.Message)" -ForegroundColor Red
+                }
+            }
+            '2' {
+                try {
+                    $newPath = $machinePath.TrimEnd(';') + ';' + $scriptPath
+                    [Environment]::SetEnvironmentVariable('Path', $newPath, 'Machine')
+                    Write-Host "Successfully added to System PATH!" -ForegroundColor Green
+                    Write-Host "You can now run 'NetworkConfig' from any terminal." -ForegroundColor Green
+                    Write-Host "You may need to restart your terminals for changes to take effect." -ForegroundColor Yellow
+                }
+                catch {
+                    Write-Host "Error adding to System PATH: $($_.Exception.Message)" -ForegroundColor Red
+                    Write-Host "Make sure you're running as administrator." -ForegroundColor Yellow
+                }
+            }
+        }
+    }
+    
+    Write-Host ""
+    Read-Host "Press Enter to continue"
+}
+
+function Refresh-DHCPLease {
+    param (
+        [Parameter(Mandatory=$false)]
+        $Adapter
+    )
+
+    Write-Host ""
+    Write-Host "Refreshing DHCP lease..." -ForegroundColor Yellow
+    try {
+        # Attempt a client-side release/renew. This may act on all adapters on some systems.
+        Start-Process -FilePath ipconfig -ArgumentList '/release' -NoNewWindow -Wait
+        Start-Process -FilePath ipconfig -ArgumentList '/renew' -NoNewWindow -Wait
+        Write-Host "DHCP lease refreshed (client-side)." -ForegroundColor Green
+    }
+    catch {
+        Write-Host "Error refreshing DHCP lease: $($_.Exception.Message)" -ForegroundColor Red
+    }
+
+    Write-Host ""
+    Read-Host "Press Enter to continue"
+}
+
+function Flush-DNS {
+    param ()
+
+    Write-Host ""
+    Write-Host "Flushing DNS cache..." -ForegroundColor Yellow
+    try {
+        # Use native cmdlet when available
+        if (Get-Command -Name Clear-DnsClientCache -ErrorAction SilentlyContinue) {
+            Clear-DnsClientCache -ErrorAction Stop
+        }
+
+        # Also run ipconfig flushdns for broad compatibility
+        Start-Process -FilePath ipconfig -ArgumentList '/flushdns' -NoNewWindow -Wait
+
+        Write-Host "DNS cache flushed." -ForegroundColor Green
+    }
+    catch {
+        Write-Host "Error flushing DNS cache: $($_.Exception.Message)" -ForegroundColor Red
+    }
+
+    Write-Host ""
+    Read-Host "Press Enter to continue"
+}
+
+function Set-DHCPConfiguration {
+    param (
+        [Parameter(Mandatory=$true)]
+        $Adapter
+    )
+    
+    Write-Host ""
+    Write-Host "Setting adapter to DHCP..." -ForegroundColor Yellow
+    
+    try {
+        # Remove existing IP configuration
+        Remove-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
+        Remove-NetRoute -InterfaceIndex $Adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
+        
+        # Set to DHCP
+        Set-NetIPInterface -InterfaceIndex $Adapter.InterfaceIndex -Dhcp Enabled -ErrorAction Stop
+        Set-DnsClientServerAddress -InterfaceIndex $Adapter.InterfaceIndex -ResetServerAddresses -ErrorAction Stop
+        
+        Write-Host "Successfully configured adapter for DHCP!" -ForegroundColor Green
+        Write-Host "The adapter will now obtain IP settings automatically." -ForegroundColor Green
+    }
+    catch {
+        Write-Host "Error configuring DHCP: $($_.Exception.Message)" -ForegroundColor Red
+    }
+    
+    Write-Host ""
+    Read-Host "Press Enter to continue"
+}
+
+function Set-ManualConfiguration {
+    param (
+        [Parameter(Mandatory=$true)]
+        $Adapter
+    )
+    
+    Write-Host ""
+    Write-Host "Manual IP Configuration" -ForegroundColor Yellow
+    Write-Host "Leave fields blank to skip configuration for that setting" -ForegroundColor Gray
+    Write-Host ""
+    
+    # Get IP Address
+    do {
+        $ipAddress = Read-Host "Enter IP Address (e.g., 192.168.1.100)"
+        if ([string]::IsNullOrWhiteSpace($ipAddress)) {
+            Write-Host "IP Address is required for manual configuration!" -ForegroundColor Red
+        }
+    } while ([string]::IsNullOrWhiteSpace($ipAddress))
+    
+    # Validate IP Address
+    try {
+        [System.Net.IPAddress]::Parse($ipAddress) | Out-Null
+    }
+    catch {
+        Write-Host "Invalid IP Address format!" -ForegroundColor Red
+        Read-Host "Press Enter to return to menu"
+        return
+    }
+    
+    # Get Subnet Mask
+    do {
+        $subnetMask = Read-Host "Enter Subnet Mask (e.g., 255.255.255.0) or prefix length (e.g., 24)"
+        if ([string]::IsNullOrWhiteSpace($subnetMask)) {
+            Write-Host "Subnet Mask is required for manual configuration!" -ForegroundColor Red
+        }
+    } while ([string]::IsNullOrWhiteSpace($subnetMask))
+    
+    # Convert subnet mask to prefix length
+    if ($subnetMask -match '^\d{1,2}$') {
+        $prefixLength = [int]$subnetMask
+    } else {
+        try {
+            $prefixLength = Convert-SubnetMaskToPrefix $subnetMask
+        }
+        catch {
+            Write-Host "Invalid Subnet Mask format!" -ForegroundColor Red
+            Read-Host "Press Enter to return to menu"
+            return
+        }
+    }
+    
+    # Get Default Gateway (optional)
+    $gateway = Read-Host "Enter Default Gateway (press Enter to skip)"
+    if (![string]::IsNullOrWhiteSpace($gateway)) {
+        try {
+            [System.Net.IPAddress]::Parse($gateway) | Out-Null
+        }
+        catch {
+            Write-Host "Invalid Gateway format!" -ForegroundColor Red
+            Read-Host "Press Enter to return to menu"
+            return
+        }
+    }
+    
+    # Get DNS Servers (optional)
+    $dnsServers = @()
+    $dns1 = Read-Host "Enter Primary DNS Server (press Enter to skip)"
+    if (![string]::IsNullOrWhiteSpace($dns1)) {
+        try {
+            [System.Net.IPAddress]::Parse($dns1) | Out-Null
+            $dnsServers += $dns1
+        }
+        catch {
+            Write-Host "Invalid DNS Server format!" -ForegroundColor Red
+            Read-Host "Press Enter to return to menu"
+            return
+        }
+    }
+    
+    $dns2 = Read-Host "Enter Secondary DNS Server (press Enter to skip)"
+    if (![string]::IsNullOrWhiteSpace($dns2)) {
+        try {
+            [System.Net.IPAddress]::Parse($dns2) | Out-Null
+            $dnsServers += $dns2
+        }
+        catch {
+            Write-Host "Invalid DNS Server format!" -ForegroundColor Red
+            Read-Host "Press Enter to return to menu"
+            return
+        }
+    }
+    
+    # Confirm configuration
+    Write-Host ""
+    Write-Host "Configuration Summary:" -ForegroundColor Cyan
+    Write-Host "  IP Address: $ipAddress/$prefixLength" -ForegroundColor White
+    if (![string]::IsNullOrWhiteSpace($gateway)) {
+        Write-Host "  Gateway: $gateway" -ForegroundColor White
+    }
+    if ($dnsServers.Count -gt 0) {
+        Write-Host "  DNS Servers: $($dnsServers -join ', ')" -ForegroundColor White
+    }
+    Write-Host ""
+    
+    $confirm = Read-Host "Apply this configuration? (Y/N)"
+    if ($confirm -ne 'Y' -and $confirm -ne 'y') {
+        Write-Host "Configuration cancelled." -ForegroundColor Yellow
+        Read-Host "Press Enter to continue"
+        return
+    }
+    
+    # Apply configuration
+    Write-Host ""
+    Write-Host "Applying configuration..." -ForegroundColor Yellow
+    
+    try {
+        # Remove existing IP configuration
+        Remove-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
+        Remove-NetRoute -InterfaceIndex $Adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
+        
+        # Disable DHCP
+        Set-NetIPInterface -InterfaceIndex $Adapter.InterfaceIndex -Dhcp Disabled -ErrorAction Stop
+        
+        # Set IP Address
+        New-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex `
+                        -IPAddress $ipAddress `
+                        -PrefixLength $prefixLength `
+                        -DefaultGateway $(if (![string]::IsNullOrWhiteSpace($gateway)) { $gateway } else { $null }) `
+                        -ErrorAction Stop | Out-Null
+        
+        # Set DNS Servers
+        if ($dnsServers.Count -gt 0) {
+            Set-DnsClientServerAddress -InterfaceIndex $Adapter.InterfaceIndex `
+                                      -ServerAddresses $dnsServers `
+                                      -ErrorAction Stop
+        }
+        
+        Write-Host "Configuration applied successfully!" -ForegroundColor Green
+    }
+    catch {
+        Write-Host "Error applying configuration: $($_.Exception.Message)" -ForegroundColor Red
+    }
+    
+    Write-Host ""
+    Read-Host "Press Enter to continue"
+}
+
+# Presets helpers
+function Get-PresetsFilePath {
+    return Join-Path $PSScriptRoot 'network-presets.json'
+}
+
+function Load-Presets {
+    $file = Get-PresetsFilePath
+    if (-not (Test-Path $file)) {
+        return @()
+    }
+
+    try {
+        $raw = Get-Content -Path $file -Raw -ErrorAction Stop
+        if ([string]::IsNullOrWhiteSpace($raw)) { return @() }
+        return $raw | ConvertFrom-Json -ErrorAction Stop
+    }
+    catch {
+        Write-Host "Error loading presets file: $($_.Exception.Message)" -ForegroundColor Red
+        return @()
+    }
+}
+
+function Save-Presets($data) {
+    $file = Get-PresetsFilePath
+    try {
+        $json = $data | ConvertTo-Json -Depth 10
+        $json | Set-Content -Path $file -Encoding UTF8 -Force
+        return $true
+    }
+    catch {
+        Write-Host "Error saving presets file: $($_.Exception.Message)" -ForegroundColor Red
+        return $false
+    }
+}
+
+function Get-PresetsForAdapter($adapterGuid) {
+    $all = Load-Presets
+    if ($null -eq $all) { return @() }
+    $entry = $all | Where-Object { $_.adapterGuid -eq $adapterGuid }
+    if ($entry) { return $entry.presets }
+    return @()
+}
+
+function Add-OrUpdate-Preset($adapter, $preset) {
+    $all = Load-Presets
+    if (-not $all) { $all = @() }
+
+    $entry = $all | Where-Object { $_.adapterGuid -eq $adapter.InterfaceGuid }
+    if (-not $entry) {
+        $entry = [PSCustomObject]@{
+            adapterGuid = $adapter.InterfaceGuid
+            adapterName = $adapter.Name
+            adapterDescription = $adapter.InterfaceDescription
+            presets = @()
+        }
+        $all += $entry
+    }
+
+    # Replace existing preset with same name
+    $existing = $entry.presets | Where-Object { $_.name -eq $preset.name }
+    if ($existing) {
+        $entry.presets = ($entry.presets | Where-Object { $_.name -ne $preset.name }) + $preset
+    }
+    else {
+        $entry.presets += $preset
+    }
+
+    Save-Presets $all | Out-Null
+}
+
+function Remove-Preset($adapterGuid, $presetName) {
+    $all = Load-Presets
+    if (-not $all) { return $false }
+    $entry = $all | Where-Object { $_.adapterGuid -eq $adapterGuid }
+    if (-not $entry) { return $false }
+    $entry.presets = $entry.presets | Where-Object { $_.name -ne $presetName }
+    Save-Presets $all | Out-Null
+    return $true
+}
+
+function Apply-Preset($adapter, $preset) {
+    if ($preset.type -eq 'DHCP') {
+        Set-DHCPConfiguration -Adapter $adapter
+        return
+    }
+
+    try {
+        Remove-NetIPAddress -InterfaceIndex $adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
+        Remove-NetRoute -InterfaceIndex $adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
+
+        Set-NetIPInterface -InterfaceIndex $adapter.InterfaceIndex -Dhcp Disabled -ErrorAction Stop
+
+        New-NetIPAddress -InterfaceIndex $adapter.InterfaceIndex -IPAddress $preset.ipAddress -PrefixLength $preset.prefixLength -DefaultGateway $(if ($preset.gateway) { $preset.gateway } else { $null }) -ErrorAction Stop | Out-Null
+
+        if ($preset.dns -and $preset.dns.Count -gt 0) {
+            Set-DnsClientServerAddress -InterfaceIndex $adapter.InterfaceIndex -ServerAddresses $preset.dns -ErrorAction Stop
+        }
+
+        Write-Host "Preset '$($preset.name)' applied successfully." -ForegroundColor Green
+    }
+    catch {
+        Write-Host "Error applying preset: $($_.Exception.Message)" -ForegroundColor Red
+    }
+    Read-Host "Press Enter to continue"
+}
+
+function Show-PresetsMenu {
+    param([Parameter(Mandatory=$true)] $Adapter)
+
+    while ($true) {
+        Clear-Host
+        Show-Header
+        Write-Host "Presets for adapter: $($Adapter.Name)" -ForegroundColor Yellow
+        $presets = Get-PresetsForAdapter $Adapter.InterfaceGuid
+        if ($presets.Count -eq 0) {
+            Write-Host "  (No presets saved)" -ForegroundColor Gray
+        }
+        else {
+            $i = 1
+            foreach ($p in $presets) {
+                Write-Host "  $i. $($p.name) - $($p.type)" -ForegroundColor White
+                $i++
+            }
+        }
+
+        Write-Host "";
+        Write-Host "A. Add current config as preset" -ForegroundColor White
+        Write-Host "L. Load/apply a preset" -ForegroundColor White
+        Write-Host "D. Delete a preset" -ForegroundColor White
+        Write-Host "E. Export presets file location" -ForegroundColor White
+        Write-Host "0. Back" -ForegroundColor Gray
+        Write-Host ""
+
+        $sel = Read-Host "Select option"
+        switch ($sel) {
+            '0' { break }
+            'A' { 'A' } 'a' { 'A' } default { }
+        }
+
+        if ($sel -in @('A','a')) {
+            # Capture current IPv4 config
+            $ipConfig = Get-NetIPConfiguration -InterfaceIndex $Adapter.InterfaceIndex -ErrorAction SilentlyContinue
+            $ipv4 = Get-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue
+
+            $presetName = Read-Host "Preset name"
+            if ([string]::IsNullOrWhiteSpace($presetName)) { Write-Host "Name required" -ForegroundColor Red; Start-Sleep -Seconds 1; continue }
+
+            if ($ipv4) {
+                $presetObj = [PSCustomObject]@{
+                    name = $presetName
+                    type = 'Manual'
+                    ipAddress = $ipv4.IPAddress
+                    prefixLength = $ipv4.PrefixLength
+                    gateway = (if ($ipConfig.IPv4DefaultGateway) { $ipConfig.IPv4DefaultGateway.NextHop } else { $null })
+                    dns = (Get-DnsClientServerAddress -InterfaceIndex $Adapter.InterfaceIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue).ServerAddresses
+                }
+            }
+            else {
+                $presetObj = [PSCustomObject]@{
+                    name = $presetName
+                    type = 'DHCP'
+                }
+            }
+
+            Add-OrUpdate-Preset -adapter $Adapter -preset $presetObj
+            Write-Host "Preset saved." -ForegroundColor Green
+            Start-Sleep -Seconds 1
+            continue
+
+        }
+
+        if ($sel -in @('L','l')) {
+            if ($presets.Count -eq 0) { Write-Host "No presets." -ForegroundColor Yellow; Start-Sleep -Seconds 1; continue }
+            $idx = Read-Host "Enter preset number to apply"
+            if ($idx -match '^[0-9]+$') {
+                $num = [int]$idx
+                if ($num -ge 1 -and $num -le $presets.Count) {
+                    $preset = $presets[$num - 1]
+                    Apply-Preset -Adapter $Adapter -preset $preset
+                }
+                else { Write-Host "Invalid selection" -ForegroundColor Red; Start-Sleep -Seconds 1 }
+            }
+            else { Write-Host "Invalid input" -ForegroundColor Red; Start-Sleep -Seconds 1 }
+            continue
+        }
+
+        if ($sel -in @('D','d')) {
+            if ($presets.Count -eq 0) { Write-Host "No presets." -ForegroundColor Yellow; Start-Sleep -Seconds 1; continue }
+            $idx = Read-Host "Enter preset number to delete"
+            if ($idx -match '^[0-9]+$') {
+                $num = [int]$idx
+                if ($num -ge 1 -and $num -le $presets.Count) {
+                    $name = $presets[$num - 1].name
+                    Remove-Preset -adapterGuid $Adapter.InterfaceGuid -presetName $name | Out-Null
+                    Write-Host "Deleted preset '$name'" -ForegroundColor Green
+                }
+                else { Write-Host "Invalid selection" -ForegroundColor Red }
+            }
+            else { Write-Host "Invalid input" -ForegroundColor Red }
+            Start-Sleep -Seconds 1
+            continue
+        }
+
+        if ($sel -in @('E','e')) {
+            $file = Get-PresetsFilePath
+            Write-Host "Presets file: $file" -ForegroundColor Cyan
+            Read-Host "Press Enter to continue"
+            continue
+        }
+    }
+}
+
+Export-ModuleMember -Function Show-Header, Get-AdapterChoice, Show-AdapterInfo, Convert-PrefixToSubnetMask, Convert-SubnetMaskToPrefix, Add-ToSystemPath, Set-DHCPConfiguration, Set-ManualConfiguration, Get-PresetsFilePath, Load-Presets, Save-Presets, Get-PresetsForAdapter, Add-OrUpdate-Preset, Remove-Preset, Apply-Preset, Show-PresetsMenu, Refresh-DHCPLease, Flush-DNS
diff --git a/Set-NetworkAdapter.ps1 b/Set-NetworkAdapter.ps1
index c37bcd4..2b4a98a 100644
--- a/Set-NetworkAdapter.ps1
+++ b/Set-NetworkAdapter.ps1
@@ -1,464 +1,14 @@
-#Requires -RunAsAdministrator
+"#Requires -RunAsAdministrator"
 
-<#
-.SYNOPSIS
-    Network Adapter Configuration Script
-.DESCRIPTION
-    Allows quick configuration of network adapter IP settings including DHCP and manual configuration
-#>
-
-function Show-Header {
-    Clear-Host
-    Write-Host "============================================" -ForegroundColor Cyan
-    Write-Host "   Network Adapter Configuration Tool" -ForegroundColor Cyan
-    Write-Host "============================================" -ForegroundColor Cyan
-    Write-Host ""
-}
-
-function Get-AdapterChoice {
-    Show-Header
-    Write-Host "Available Network Adapters:" -ForegroundColor Yellow
-    Write-Host ""
-
-    while ($true) {
-        $adapters = Get-NetAdapter | Where-Object { $_.Status -ne 'Disabled' }
-
-        if ($adapters.Count -eq 0) {
-            Write-Host "No active network adapters found!" -ForegroundColor Red
-            Read-Host "Press Enter to exit"
-            exit
-        }
-
-        $index = 1
-        foreach ($adapter in $adapters) {
-            $status = if ($adapter.Status -eq 'Up') { 
-                "[CONNECTED]" 
-            } else { 
-                "[" + $adapter.Status.ToUpper() + "]" 
-            }
-
-            # Get IP address
-            $ipv4 = Get-NetIPAddress -InterfaceIndex $adapter.InterfaceIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue
-            $ipAddress = if ($ipv4) { $ipv4.IPAddress } else { "No IP" }
-
-            # Get MAC address in both formats
-            $macWindows = $adapter.MacAddress
-            $macLinux = $macWindows -replace '-', ':'
-
-            Write-Host "$index. $($adapter.Name)" -ForegroundColor White
-
-            # Colored description + status
-            $statusLabel = if ($adapter.Status -eq 'Up') { 'CONNECTED' } else { $adapter.Status.ToUpper() }
-            if ($adapter.Status -eq 'Up') { $statusColor = 'Green' }
-            elseif ($adapter.Status -in @('Down','NotPresent','Not Present')) { $statusColor = 'Red' }
-            else { $statusColor = 'Yellow' }
-
-            Write-Host "    $($adapter.InterfaceDescription) " -ForegroundColor Gray -NoNewline
-            Write-Host "[$statusLabel]" -ForegroundColor $statusColor
-
-            # Colored IP and MAC display
-            if ($ipv4) {
-                Write-Host "    IP: $ipAddress" -ForegroundColor Cyan -NoNewline
-            } else {
-                Write-Host "    IP: No IP" -ForegroundColor DarkYellow -NoNewline
-            }
-            Write-Host " | MAC: $macWindows ($macLinux)" -ForegroundColor DarkGray
-            $index++
-        }
-
-        Write-Host ""
-        Write-Host "R. Refresh list" -ForegroundColor White
-        Write-Host "P. Add/Remove from System PATH" -ForegroundColor White
-        Write-Host "0. Exit" -ForegroundColor Gray
-        Write-Host ""
-
-        do {
-            $choice = Read-Host "Select adapter number"
-            if ($choice -eq '0') {
-                exit
-            }
-            if ($choice -in @('P','p')) {
-                Add-ToSystemPath
-                return $null
-            }
-            if ($choice -in @('R','r')) {
-                break
-            }
-
-            if ($choice -match '^[0-9]+$') {
-                $choiceNum = [int]$choice
-            } else {
-                $choiceNum = -1
-            }
-        } while ($choiceNum -lt 1 -or $choiceNum -gt $adapters.Count)
-
-        if ($choice -in @('R','r')) {
-            Clear-Host
-            Show-Header
-            continue
-        }
-
-        return $adapters[$choiceNum - 1]
-    }
-}
-
-function Show-AdapterInfo {
-    param (
-        [Parameter(Mandatory=$true)]
-        $Adapter
-    )
-    
-    Show-Header
-    Write-Host "Adapter: $($Adapter.Name)" -ForegroundColor Green
-    Write-Host "Description: $($Adapter.InterfaceDescription)" -ForegroundColor White
-    Write-Host "Status: $($Adapter.Status)" -ForegroundColor $(if ($Adapter.Status -eq 'Up') { 'Green' } else { 'Yellow' })
-    Write-Host ""
-    
-    Write-Host "Hardware Information:" -ForegroundColor Yellow
-    $macWindows = $Adapter.MacAddress
-    $macLinux = $macWindows -replace '-', ':'
-    Write-Host "  MAC Address: $macWindows (Windows)" -ForegroundColor White
-    Write-Host "  MAC Address: $macLinux (Linux/Unix)" -ForegroundColor White
-    Write-Host "  Link Speed: $($Adapter.LinkSpeed)" -ForegroundColor White
-    Write-Host ""
-    
-    $ipConfig = Get-NetIPConfiguration -InterfaceIndex $Adapter.InterfaceIndex -ErrorAction SilentlyContinue
-    $ipv4 = Get-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue
-    
-    Write-Host "IPv4 Configuration:" -ForegroundColor Yellow
-    
-    if ($ipv4) {
-        Write-Host "  IP Address: $($ipv4.IPAddress)" -ForegroundColor White
-        Write-Host "  Subnet Prefix Length: $($ipv4.PrefixLength) ($(Convert-PrefixToSubnetMask $ipv4.PrefixLength))" -ForegroundColor White
-        Write-Host "  DHCP Enabled: $($ipv4.PrefixOrigin -eq 'Dhcp')" -ForegroundColor White
-    } else {
-        Write-Host "  IP Address: Not configured" -ForegroundColor Gray
-    }
-    
-    if ($ipConfig.IPv4DefaultGateway) {
-        Write-Host "  Default Gateway: $($ipConfig.IPv4DefaultGateway.NextHop)" -ForegroundColor White
-    } else {
-        Write-Host "  Default Gateway: Not configured" -ForegroundColor Gray
-    }
-    
-    $dnsServers = Get-DnsClientServerAddress -InterfaceIndex $Adapter.InterfaceIndex -AddressFamily IPv4 -ErrorAction SilentlyContinue
-    if ($dnsServers -and $dnsServers.ServerAddresses) {
-        Write-Host "  DNS Servers:" -ForegroundColor White
-        foreach ($dns in $dnsServers.ServerAddresses) {
-            Write-Host "    - $dns" -ForegroundColor White
-        }
-    } else {
-        Write-Host "  DNS Servers: Not configured" -ForegroundColor Gray
-    }
-    
-    Write-Host ""
-}
-
-function Convert-PrefixToSubnetMask {
-    param([int]$PrefixLength)
-    
-    $mask = ([Math]::Pow(2, 32) - [Math]::Pow(2, (32 - $PrefixLength)))
-    $bytes = [BitConverter]::GetBytes([UInt32]$mask)
-    [Array]::Reverse($bytes)
-    return ($bytes -join '.')
-}
-
-function Convert-SubnetMaskToPrefix {
-    param([string]$SubnetMask)
-    
-    $octets = $SubnetMask -split '\.'
-    $binaryString = ''
-    foreach ($octet in $octets) {
-        $binaryString += [Convert]::ToString([int]$octet, 2).PadLeft(8, '0')
-    }
-    return ($binaryString.ToCharArray() | Where-Object { $_ -eq '1' }).Count
-}
-
-function Add-ToSystemPath {
-    Write-Host ""
-    Write-Host "Add NetworkConfig to System PATH" -ForegroundColor Yellow
-    Write-Host "="*50 -ForegroundColor Yellow
-    Write-Host ""
-    
-    $scriptPath = Split-Path -Parent $PSCommandPath
-    
-    # Check current PATH
-    $userPath = [Environment]::GetEnvironmentVariable('Path', 'User')
-    $machinePath = [Environment]::GetEnvironmentVariable('Path', 'Machine')
-    
-    $isInUserPath = $userPath -split ';' | Where-Object { $_ -eq $scriptPath }
-    $isInMachinePath = $machinePath -split ';' | Where-Object { $_ -eq $scriptPath }
-    
-    Write-Host "Script Location: $scriptPath" -ForegroundColor Cyan
-    Write-Host ""
-    
-    if ($isInUserPath) {
-        Write-Host "✓ Already in User PATH" -ForegroundColor Green
-    }
-    if ($isInMachinePath) {
-        Write-Host "✓ Already in System PATH" -ForegroundColor Green
-    }
-    
-    if ($isInUserPath -or $isInMachinePath) {
-        Write-Host ""
-        Write-Host "Options:" -ForegroundColor Yellow
-        Write-Host "1. Remove from User PATH" -ForegroundColor White
-        Write-Host "2. Remove from System PATH" -ForegroundColor White
-        Write-Host "0. Cancel" -ForegroundColor Gray
-        Write-Host ""
-        
-        $choice = Read-Host "Select option"
-        
-        switch ($choice) {
-            '1' {
-                if ($isInUserPath) {
-                    try {
-                        $newPath = ($userPath -split ';' | Where-Object { $_ -ne $scriptPath }) -join ';'
-                        [Environment]::SetEnvironmentVariable('Path', $newPath, 'User')
-                        Write-Host "Successfully removed from User PATH!" -ForegroundColor Green
-                        Write-Host "You may need to restart your terminals for changes to take effect." -ForegroundColor Yellow
-                    }
-                    catch {
-                        Write-Host "Error removing from User PATH: $($_.Exception.Message)" -ForegroundColor Red
-                    }
-                } else {
-                    Write-Host "Not found in User PATH." -ForegroundColor Yellow
-                }
-            }
-            '2' {
-                if ($isInMachinePath) {
-                    try {
-                        $newPath = ($machinePath -split ';' | Where-Object { $_ -ne $scriptPath }) -join ';'
-                        [Environment]::SetEnvironmentVariable('Path', $newPath, 'Machine')
-                        Write-Host "Successfully removed from System PATH!" -ForegroundColor Green
-                        Write-Host "You may need to restart your terminals for changes to take effect." -ForegroundColor Yellow
-                    }
-                    catch {
-                        Write-Host "Error removing from System PATH: $($_.Exception.Message)" -ForegroundColor Red
-                    }
-                } else {
-                    Write-Host "Not found in System PATH." -ForegroundColor Yellow
-                }
-            }
-        }
-    } else {
-        Write-Host "Not currently in PATH." -ForegroundColor Gray
-        Write-Host ""
-        Write-Host "Where would you like to add it?" -ForegroundColor Yellow
-        Write-Host "1. User PATH (current user only)" -ForegroundColor White
-        Write-Host "2. System PATH (all users - requires admin)" -ForegroundColor White
-        Write-Host "0. Cancel" -ForegroundColor Gray
-        Write-Host ""
-        
-        $choice = Read-Host "Select option"
-        
-        switch ($choice) {
-            '1' {
-                try {
-                    $newPath = $userPath.TrimEnd(';') + ';' + $scriptPath
-                    [Environment]::SetEnvironmentVariable('Path', $newPath, 'User')
-                    Write-Host "Successfully added to User PATH!" -ForegroundColor Green
-                    Write-Host "You can now run 'NetworkConfig' from any terminal." -ForegroundColor Green
-                    Write-Host "You may need to restart your terminals for changes to take effect." -ForegroundColor Yellow
-                }
-                catch {
-                    Write-Host "Error adding to User PATH: $($_.Exception.Message)" -ForegroundColor Red
-                }
-            }
-            '2' {
-                try {
-                    $newPath = $machinePath.TrimEnd(';') + ';' + $scriptPath
-                    [Environment]::SetEnvironmentVariable('Path', $newPath, 'Machine')
-                    Write-Host "Successfully added to System PATH!" -ForegroundColor Green
-                    Write-Host "You can now run 'NetworkConfig' from any terminal." -ForegroundColor Green
-                    Write-Host "You may need to restart your terminals for changes to take effect." -ForegroundColor Yellow
-                }
-                catch {
-                    Write-Host "Error adding to System PATH: $($_.Exception.Message)" -ForegroundColor Red
-                    Write-Host "Make sure you're running as administrator." -ForegroundColor Yellow
-                }
-            }
-        }
-    }
-    
-    Write-Host ""
-    Read-Host "Press Enter to continue"
-}
-
-function Set-DHCPConfiguration {
-    param (
-        [Parameter(Mandatory=$true)]
-        $Adapter
-    )
-    
-    Write-Host ""
-    Write-Host "Setting adapter to DHCP..." -ForegroundColor Yellow
-    
-    try {
-        # Remove existing IP configuration
-        Remove-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
-        Remove-NetRoute -InterfaceIndex $Adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
-        
-        # Set to DHCP
-        Set-NetIPInterface -InterfaceIndex $Adapter.InterfaceIndex -Dhcp Enabled -ErrorAction Stop
-        Set-DnsClientServerAddress -InterfaceIndex $Adapter.InterfaceIndex -ResetServerAddresses -ErrorAction Stop
-        
-        Write-Host "Successfully configured adapter for DHCP!" -ForegroundColor Green
-        Write-Host "The adapter will now obtain IP settings automatically." -ForegroundColor Green
-    }
-    catch {
-        Write-Host "Error configuring DHCP: $($_.Exception.Message)" -ForegroundColor Red
-    }
-    
-    Write-Host ""
-    Read-Host "Press Enter to continue"
-}
-
-function Set-ManualConfiguration {
-    param (
-        [Parameter(Mandatory=$true)]
-        $Adapter
-    )
-    
-    Write-Host ""
-    Write-Host "Manual IP Configuration" -ForegroundColor Yellow
-    Write-Host "Leave fields blank to skip configuration for that setting" -ForegroundColor Gray
-    Write-Host ""
-    
-    # Get IP Address
-    do {
-        $ipAddress = Read-Host "Enter IP Address (e.g., 192.168.1.100)"
-        if ([string]::IsNullOrWhiteSpace($ipAddress)) {
-            Write-Host "IP Address is required for manual configuration!" -ForegroundColor Red
-        }
-    } while ([string]::IsNullOrWhiteSpace($ipAddress))
-    
-    # Validate IP Address
-    try {
-        [System.Net.IPAddress]::Parse($ipAddress) | Out-Null
-    }
-    catch {
-        Write-Host "Invalid IP Address format!" -ForegroundColor Red
-        Read-Host "Press Enter to return to menu"
-        return
-    }
-    
-    # Get Subnet Mask
-    do {
-        $subnetMask = Read-Host "Enter Subnet Mask (e.g., 255.255.255.0) or prefix length (e.g., 24)"
-        if ([string]::IsNullOrWhiteSpace($subnetMask)) {
-            Write-Host "Subnet Mask is required for manual configuration!" -ForegroundColor Red
-        }
-    } while ([string]::IsNullOrWhiteSpace($subnetMask))
-    
-    # Convert subnet mask to prefix length
-    if ($subnetMask -match '^\d{1,2}$') {
-        $prefixLength = [int]$subnetMask
-    } else {
-        try {
-            $prefixLength = Convert-SubnetMaskToPrefix $subnetMask
-        }
-        catch {
-            Write-Host "Invalid Subnet Mask format!" -ForegroundColor Red
-            Read-Host "Press Enter to return to menu"
-            return
-        }
-    }
-    
-    # Get Default Gateway (optional)
-    $gateway = Read-Host "Enter Default Gateway (press Enter to skip)"
-    if (![string]::IsNullOrWhiteSpace($gateway)) {
-        try {
-            [System.Net.IPAddress]::Parse($gateway) | Out-Null
-        }
-        catch {
-            Write-Host "Invalid Gateway format!" -ForegroundColor Red
-            Read-Host "Press Enter to return to menu"
-            return
-        }
-    }
-    
-    # Get DNS Servers (optional)
-    $dnsServers = @()
-    $dns1 = Read-Host "Enter Primary DNS Server (press Enter to skip)"
-    if (![string]::IsNullOrWhiteSpace($dns1)) {
-        try {
-            [System.Net.IPAddress]::Parse($dns1) | Out-Null
-            $dnsServers += $dns1
-        }
-        catch {
-            Write-Host "Invalid DNS Server format!" -ForegroundColor Red
-            Read-Host "Press Enter to return to menu"
-            return
-        }
-    }
-    
-    $dns2 = Read-Host "Enter Secondary DNS Server (press Enter to skip)"
-    if (![string]::IsNullOrWhiteSpace($dns2)) {
-        try {
-            [System.Net.IPAddress]::Parse($dns2) | Out-Null
-            $dnsServers += $dns2
-        }
-        catch {
-            Write-Host "Invalid DNS Server format!" -ForegroundColor Red
-            Read-Host "Press Enter to return to menu"
-            return
-        }
-    }
-    
-    # Confirm configuration
-    Write-Host ""
-    Write-Host "Configuration Summary:" -ForegroundColor Cyan
-    Write-Host "  IP Address: $ipAddress/$prefixLength" -ForegroundColor White
-    if (![string]::IsNullOrWhiteSpace($gateway)) {
-        Write-Host "  Gateway: $gateway" -ForegroundColor White
-    }
-    if ($dnsServers.Count -gt 0) {
-        Write-Host "  DNS Servers: $($dnsServers -join ', ')" -ForegroundColor White
-    }
-    Write-Host ""
-    
-    $confirm = Read-Host "Apply this configuration? (Y/N)"
-    if ($confirm -ne 'Y' -and $confirm -ne 'y') {
-        Write-Host "Configuration cancelled." -ForegroundColor Yellow
-        Read-Host "Press Enter to continue"
-        return
-    }
-    
-    # Apply configuration
-    Write-Host ""
-    Write-Host "Applying configuration..." -ForegroundColor Yellow
-    
-    try {
-        # Remove existing IP configuration
-        Remove-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
-        Remove-NetRoute -InterfaceIndex $Adapter.InterfaceIndex -Confirm:$false -ErrorAction SilentlyContinue
-        
-        # Disable DHCP
-        Set-NetIPInterface -InterfaceIndex $Adapter.InterfaceIndex -Dhcp Disabled -ErrorAction Stop
-        
-        # Set IP Address
-        New-NetIPAddress -InterfaceIndex $Adapter.InterfaceIndex `
-                        -IPAddress $ipAddress `
-                        -PrefixLength $prefixLength `
-                        -DefaultGateway $(if (![string]::IsNullOrWhiteSpace($gateway)) { $gateway } else { $null }) `
-                        -ErrorAction Stop | Out-Null
-        
-        # Set DNS Servers
-        if ($dnsServers.Count -gt 0) {
-            Set-DnsClientServerAddress -InterfaceIndex $Adapter.InterfaceIndex `
-                                      -ServerAddresses $dnsServers `
-                                      -ErrorAction Stop
-        }
-        
-        Write-Host "Configuration applied successfully!" -ForegroundColor Green
-    }
-    catch {
-        Write-Host "Error applying configuration: $($_.Exception.Message)" -ForegroundColor Red
-    }
-    
-    Write-Host ""
-    Read-Host "Press Enter to continue"
+# Import module
+$scriptPath = Split-Path -Parent $PSCommandPath
+$modulePath = Join-Path $scriptPath 'NetworkAdapter.psm1'
+if (Test-Path $modulePath) {
+    Import-Module $modulePath -Force
+} else {
+    Write-Host "Module not found: $modulePath" -ForegroundColor Red
+    Read-Host "Press Enter to exit"
+    exit
 }
 
 # Main script
@@ -490,6 +40,7 @@ try {
             Write-Host "2. Set Manual IP Configuration" -ForegroundColor White
             Write-Host "3. Refresh Adapter Status" -ForegroundColor White
             Write-Host "4. Choose Different Adapter" -ForegroundColor White
+            Write-Host "5. Presets (save/load)" -ForegroundColor White
             Write-Host "0. Exit" -ForegroundColor Gray
             Write-Host ""
             
@@ -510,6 +61,9 @@ try {
                 '4' {
                     break
                 }
+                '5' {
+                    Show-PresetsMenu -Adapter $adapter
+                }
                 '0' {
                     exit
                 }
diff --git a/network-presets.schema.json b/network-presets.schema.json
new file mode 100644
index 0000000..f3a0ee7
--- /dev/null
+++ b/network-presets.schema.json
@@ -0,0 +1,35 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "Network Presets Schema",
+  "type": "object",
+  "properties": {
+    "presets": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "adapterGuid": { "type": "string" },
+          "adapterName": { "type": "string" },
+          "adapterDescription": { "type": "string" },
+          "presets": {
+            "type": "array",
+            "items": {
+              "type": "object",
+              "properties": {
+                "name": { "type": "string" },
+                "type": { "type": "string", "enum": ["Manual","DHCP"] },
+                "ipAddress": { "type": "string" },
+                "prefixLength": { "type": "integer", "minimum": 0, "maximum": 32 },
+                "gateway": { "type": ["string","null"] },
+                "dns": { "type": "array", "items": { "type": "string" } }
+              },
+              "required": [ "name", "type" ]
+            }
+          }
+        },
+        "required": [ "adapterGuid", "presets" ]
+      }
+    }
+  },
+  "required": [ "presets" ]
+}
diff --git a/test-syntax.ps1 b/test-syntax.ps1
new file mode 100644
index 0000000..d8f9e0e
--- /dev/null
+++ b/test-syntax.ps1
@@ -0,0 +1,12 @@
+$files = @('NetworkAdapter.psm1','Set-NetworkAdapter.ps1')
+foreach ($f in $files) {
+    Write-Host '---' $f '---'
+    $errors = $null
+    [void][System.Management.Automation.Language.Parser]::ParseFile((Join-Path $PSScriptRoot $f), [ref]$null, [ref]$errors)
+    if ($errors -and $errors.Count -gt 0) {
+        $errors | ForEach-Object { Write-Host ("Line {0}: {1}" -f $_.Extent.StartLineNumber, $_.Message) -ForegroundColor Red }
+    }
+    else {
+        Write-Host 'No syntax errors.' -ForegroundColor Green
+    }
+}