To display the Window menu, press Alt+Spacebar.
Press the Down Arrow key to select Occupy Workspace, then press Return.
The Occupy Workspace dialog box appears.
Press Tab until the keyboard focus, as shown by the highlight, is in the Workspaces list.
Select the workspaces in which you want the window to appear:
Press Down Arrow or Up Arrow to move through the list.
To select more than one workspace, press Shift+Down Arrow or Shift+Up Arrow.