Now when you click on any widget in the Mobile viewport, it will load a Desktop Keyhole — a window where you can check out the desktop version of your widget. This allows you to control the look of the Desktop version of the widget, while editing properties in the Mobile viewport.
The Desktop Keyhole image will update as you change widget properties. If the widget is hidden in the Desktop viewport, you will receive a notification.
To load the Desktop viewport, click on a desktop icon in the Desktop Keyhole with the widget still selected.
Learn more in our Help section.