Added PowerShell example script

documentation/Enterprise IT.md

@@ -35,6 +35,94 @@ MINDWORK_AI_STUDIO_ENTERPRISE_CONFIGS=9072b77d-ca81-40da-be6a-861da525ef7b@https
 
 **Priority:** When multiple configurations define the same setting (e.g., a provider with the same ID), the first definition wins. The order of entries in the variable determines priority. Place the organization-wide configuration first, followed by department-specific configurations if the organization should have higher priority.
 
+### Windows GPO / PowerShell example for `configs`
+
+If you distribute multiple GPOs, each GPO should read and write the same registry value (`configs`) and only update its own `id@url` entry. Other entries must stay untouched.
+
+The following PowerShell example provides helper functions for appending and removing entries safely:
+
+```powershell
+$RegistryPath = "HKCU:\Software\github\MindWork AI Studio\Enterprise IT"
+$ConfigsValueName = "configs"
+
+function Get-ConfigEntries {
+    param([string]$RawValue)
+
+    if ([string]::IsNullOrWhiteSpace($RawValue)) { return @() }
+
+    $entries = @()
+    foreach ($part in $RawValue.Split(';')) {
+        $trimmed = $part.Trim()
+        if ([string]::IsNullOrWhiteSpace($trimmed)) { continue }
+
+        $pair = $trimmed.Split('@', 2)
+        if ($pair.Count -ne 2) { continue }
+
+        $id = $pair[0].Trim().ToLowerInvariant()
+        $url = $pair[1].Trim()
+        if ([string]::IsNullOrWhiteSpace($id) -or [string]::IsNullOrWhiteSpace($url)) { continue }
+
+        $entries += [PSCustomObject]@{
+            Id  = $id
+            Url = $url
+        }
+    }
+
+    return $entries
+}
+
+function ConvertTo-ConfigValue {
+    param([array]$Entries)
+
+    return ($Entries | ForEach-Object { "$($_.Id)@$($_.Url)" }) -join ';'
+}
+
+function Add-EnterpriseConfigEntry {
+    param(
+        [Parameter(Mandatory=$true)][Guid]$ConfigId,
+        [Parameter(Mandatory=$true)][string]$ServerUrl
+    )
+
+    if (-not (Test-Path $RegistryPath)) {
+        New-Item -Path $RegistryPath -Force | Out-Null
+    }
+
+    $raw = (Get-ItemProperty -Path $RegistryPath -Name $ConfigsValueName -ErrorAction SilentlyContinue).$ConfigsValueName
+    $entries = Get-ConfigEntries -RawValue $raw
+    $normalizedId = $ConfigId.ToString().ToLowerInvariant()
+    $normalizedUrl = $ServerUrl.Trim()
+
+    # Replace only this one ID, keep all other entries unchanged.
+    $entries = @($entries | Where-Object { $_.Id -ne $normalizedId })
+    $entries += [PSCustomObject]@{
+        Id  = $normalizedId
+        Url = $normalizedUrl
+    }
+
+    Set-ItemProperty -Path $RegistryPath -Name $ConfigsValueName -Type String -Value (ConvertTo-ConfigValue -Entries $entries)
+}
+
+function Remove-EnterpriseConfigEntry {
+    param(
+        [Parameter(Mandatory=$true)][Guid]$ConfigId
+    )
+
+    if (-not (Test-Path $RegistryPath)) { return }
+
+    $raw = (Get-ItemProperty -Path $RegistryPath -Name $ConfigsValueName -ErrorAction SilentlyContinue).$ConfigsValueName
+    $entries = Get-ConfigEntries -RawValue $raw
+    $normalizedId = $ConfigId.ToString().ToLowerInvariant()
+
+    # Remove only this one ID, keep all other entries unchanged.
+    $updated = @($entries | Where-Object { $_.Id -ne $normalizedId })
+    Set-ItemProperty -Path $RegistryPath -Name $ConfigsValueName -Type String -Value (ConvertTo-ConfigValue -Entries $updated)
+}
+
+# Example usage:
+# Add-EnterpriseConfigEntry -ConfigId "9072b77d-ca81-40da-be6a-861da525ef7b" -ServerUrl "https://intranet.example.org:30100/ai-studio/configuration"
+# Remove-EnterpriseConfigEntry -ConfigId "9072b77d-ca81-40da-be6a-861da525ef7b"
+```
+
 ### Single configuration (legacy)
 
 The following single-configuration keys and variables are still supported for backwards compatibility. AI Studio always reads both the multi-config and legacy variables and merges all found configurations into one list. If a configuration ID appears in both, the entry from the multi-config format takes priority (first occurrence wins). This means you can migrate to the new format incrementally without losing existing configurations: