# Customization Options

Explore customizations performed by DevOps in Windows Forms Viewer, WPF Viewer, JS Viewer, and design capabilities in Windows Forms and Web Designer.

## Content



A few customizations that can be performed by DevOps are as described.

### Windows Forms Viewer

The Windows Forms control allows the Window Forms-related customization. See [Windows Forms Viewer](/activereportsnet/docs/v19.2/developers/create-applications/dotnet-viewer-application/working-with-win-viewer) topic and the [Win Viewer](https://github.com/activereports/Samples19/tree/main/Desktop/WinViewer) sample for details.

### WPF Viewer

You can customize the WPF Viewer by applying themes. See [WPF Viewer](/activereportsnet/docs/v19.2/developers/create-applications/dotnet-viewer-application/working-with-wpf-viewer) topic and the [WPF Viewer](https://github.com/activereports/Samples19/tree/main/Desktop/WpfViewer) sample for details.

### JS Viewer

See the [JS Viewer API](/activereportsnet/docs/v19.2/developers/create-applications/js-viewer-application/jsviewer-api) to learn about the customization possibilities of the JS Viewer.

For example, you can change the viewer toolbar in several ways:

*   Add a custom toolbar item (or button)
*   Remove an existing item from the toolbar
*   Change visible toolbar items and their order

You can also change the position of the sidebar panes such as search, parameters, etc.

### Windows Forms Designer

You can turn on/off almost all elements of the Report Explorer and script/preview tabs.

### WebDesigner

See the [WebDesigner API](/activereportsnet/docs/v19.2/developers/create-applications/web-designer-application/web-designer-api) to learn about the customization possibilities of the Web Designer.

You can change the visibility of many designer components, such as group editor, report explorer, toolbox, tabs, buttons, and more.

## See Also

#### Developers

[WebDesigner API](/activereportsnet/docs/v19.2/developers/create-applications/web-designer-application/web-designer-api)

[Js Viewer API](/activereportsnet/docs/v19.2/developers/create-applications/js-viewer-application/jsviewer-api)