The Properties tab contains basic properties of the screen:

The Actions button allows you to manage the list of actions associated with the screen. Clicking the button opens the Actions window. To add a new action, click Add and set the following attributes:

Actions themselves are invisible, but they delegate properties to visual components associated with them.

The Timers button allows you to manage the list of timers associated with the screen.

The Dialog mode button allows you to control geometry and behaviour of the screen when it is opened as a dialog.