function Load-Templates {
        
    $flow.SuspendLayout()
    $flow.Controls.Clear()
        
    # Lokales Tracking-Objekt
    $selectionTracker = @{
        LastSelectedListBox = $null
    }

    if (-not (Test-Path -Path $($settingsManager.Get("TemplatePath")))) {
        $statusBar.SetText("Status", "Root-Ordner nicht gefunden: $rootPath")
    }
    else {
        try {
            $Categories = Get-ChildItem -Path $($settingsManager.Get("TemplatePath")) -Directory -ErrorAction Stop
        }
        catch {
            $statusBar.SetText("Status", "Fehler beim Laden: $($_.Exception.Message)")
            [System.Windows.Forms.MessageBox]::Show(
                "Konnte Kategorien nicht laden: $($_.Exception.Message)",
                "Fehler",
                [System.Windows.Forms.MessageBoxButtons]::OK,
                [System.Windows.Forms.MessageBoxIcon]::Error
            )
            return
        }
        if ($Categories.Count -eq 0) {
            $labelNoCategories = (
                [LabelBuilder]::new("Keine Unterordner gefunden.", 24).
                SetDock('Top').
                SetTextAlign([System.Drawing.ContentAlignment]::MiddleLeft).
                SetPadding(5, 0, 0, 0).
                Build()
            )
            $flow.Controls.Add($labelNoCategories)
            return
        }
        else {
            foreach ($Categorie in $Categories) {
                    
                $GroupBox = (
                    [GroupBoxBuilder]::new($Categorie.Name).
                    #SetAutoSize($true).
                    SetWidth(0).
                    SetHeight(90).
                    SetMargin(4).
                    SetPadding(10).
                    AddTo($flow)
                )
                    
                $GroupBox.Tag = $Categorie.Name
                                    
                $Files = Get-ChildItem -Path $Categorie.FullName -Filter "*.psd1" -File -ErrorAction SilentlyContinue | Sort-Object Name
                if ($Files.Count -eq 0) {
                    $ListBox = (
                        [ListBoxBuilder]::new().
                        SetDock('Fill').  # Füllt die GroupBox aus
                        AddItem("Keine Templates").
                        AddTo($GroupBox)
                    )
                }
                else {
                        
                    $ListBox = (
                        [ListBoxBuilder]::new().
                        SetDock('Fill').
                        AddSelectedIndexChangedHandler({
                                param($s, $e)

                                if ($null -ne $selectionTracker.LastSelectedListBox -and 
                                    $selectionTracker.LastSelectedListBox -ne $s) {
                                            
                                    # Deselektiere die vorherige ListBox
                                    $selectionTracker.LastSelectedListBox.ClearSelected()
                                }
                                        
                                # Speichere die aktuelle ListBox
                                $selectionTracker.LastSelectedListBox = $s

                                $selectedItem = $s.SelectedItem
                                if ($null -ne $selectedItem -and ($selectedItem -isnot [string])) {
                                    $currentGroupBox = $s.Parent
                                    $statusBar.SetText("Status", "Ausgewählt: $($selectedItem.FullName) [Kategorie: $($currentGroupBox.Tag)]")
                                    Show-Template -Template $([TemplateBuilder]::new($selectedItem.FullName).ResolveDeploymentDataVariables())
                                }
                            }.GetNewClosure()).
                        AddMouseDoubleClickHandler({
                                param($s, $e)
                                $selectedItem = $s.SelectedItem
                                if ($null -ne $selectedItem -and ($selectedItem -isnot [string])) {
                                    $fullPath = $selectedItem.FullName
                                    if (-not (Test-Path $fullPath)) {
                                        [System.Windows.Forms.MessageBox]::Show("Datei nicht gefunden: $fullPath", "Fehler", [System.Windows.Forms.MessageBoxButtons]::OK, [System.Windows.Forms.MessageBoxIcon]::Error)
                                        return
                                    }
                                    $newItem = New-Object PSObject -Property @{ BaseName = [System.IO.Path]::GetFileNameWithoutExtension($fullPath); FullName = $fullPath }
                                    if (-not ($selectionList.Items | Where-Object { $_.FullName -eq $newItem.FullName })) {
                                        $selectionList.Items.Add($newItem) | Out-Null
                                        $stateManager.SetState("hasSelection", $true)
                                        $stateManager.SetState("isMerged", $false)
                                        $stateManager.UpdateAllButtons()
                                        $statusBar.SetText("Status", "Zur Auswahl hinzugefügt: $fullPath")
                                    }
                                    else {
                                        $statusBar.SetText("Status", "Datei bereits in der Auswahl")
                                    }
                                }
                            })
                    )

                    foreach ($file in $files) {
                        $item = New-Object PSObject -Property @{ BaseName = $file.BaseName; FullName = $file.FullName }
                        $ListBox.AddItem($item)
                        $ListBox.AddTo($GroupBox)
                    }
                }
            }
            $flow.ResumeLayout()
        }
    }
        
    $form.Form.Invoke([Action] {
            $splitPanel.AutoSizeSplitterToPanel1Content()
        })
}