Screen
To get the Screen keyword in the command line, press 
+ View (= Screen).
You can also type Screen or the shortcut Scr in the command line .
Description
Section titled “Description”The Screen keyword represents the screens.
The Screen keyword is an object keyword.
Syntax
Section titled “Syntax”Screen [screen-number]
Screen [screen-number].[window-number]
Example
Section titled “Example”- Clear screen 2 to get an empty screen.
[Channel]> Delete Screen 2
Hint:
Another way to clear the screen is, press and hold the 
key and tap Clear Screen.
- Assigns mask 5 to the third window of the second screen.
[Channel]> Assign Mask 5 Screen 2.3