Press Alt+Tab to move the keyboard focus, as shown by the highlight, to the window you want to display in other workspaces.
Display the Window menu by pressing 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 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.
Press Tab to move the keyboard focus to OK, then press Return or the Spacebar.