Scroll Inactive Windows
Available in: Actual Window Manager, Actual Multiple Monitors, Actual Title Buttons, Actual Window Menu.
The Scroll Inactive Windows Control Center tool lets you scroll the contents of inactive windows with the mouse wheel without the need to activate them: just place the mouse pointer over required window and rotate the wheel.
Hint This may be useful, for example, when you write a document in a text editor and need to refer to some other document (either text, graphic or web page): with this feature you can use the keyboard to type a text in the text editor and the mouse to scroll the other document - without a single mouse click or Alt-Tab press!
You can enable the Scroll Inactive Windows tool in the Drag and Scroll options panel.