this->ChildSlot
    [
        + SVerticalBox::Slot().AutoHeight().Padding(10) // Transformation
        [
            SNew(SBorder).Padding(FMargin(3)).BorderImage(FEditorStyle::GetBrush("ToolPanel.GroupBorder"))
            [
                SNew(SHorizontalBox)
                + SHorizontalBox::Slot().AutoWidth()
                [
                    SNew(STextBlock).TextStyle(FCoreStyle::Get(), "")
                    .Text(NSLOCTEXT("FTextImportPluginModule", "ParseBPLabel", "Parser")).ColorAndOpacity(FLinearColor(1, 1, 1, 0.8))
                ]
                + SHorizontalBox::Slot().AutoWidth()
                [
                    SNew(SUniformGridPanel).SlotPadding(2)
                    + SUniformGridPanel::Slot(1, 0)
                    [
                        SNew(SNumericEntryBox <float>) // X
                        .AllowSpin(true)
                        .MinValue(-180)
                        .MaxValue(180)
                        .MinSliderValue(-180)
                        .MaxSliderValue(180)
                        .Value(0)
                        .OnValueChanged(this, &STextOptionsWindow::AssetChanged)
                    ]
                    + SUniformGridPanel::Slot(2, 0)
                    + SUniformGridPanel::Slot(3, 0)
                ]
            ]
        ]
        + SVerticalBox::Slot().AutoHeight().Padding(10) // Cancel/Import
        [
            SNew(SUniformGridPanel).SlotPadding(2)
            + SUniformGridPanel::Slot(2, 0)
            [
                SAssignNew(ImportButton, SButton)
                .HAlign(HAlign_Center)
                .Text(NSLOCTEXT("FTextImportPluginModule", "ImportLabel", "Import"))
                .IsEnabled(this, &STextOptionsWindow::CanImport)
                .OnClicked(this, &STextOptionsWindow::OnImport)
            ]
            + SUniformGridPanel::Slot(3, 0)
            [
                SNew(SButton)
                .HAlign(HAlign_Center)
                .Text(NSLOCTEXT("FTextImportPluginModule", "CancelLabel", "Cancel"))
                .OnClicked(this, &STextOptionsWindow::OnCancel)
            ]
        ]
    ];