Expand or collapse the ribbon (Ctrl + F1 )
Choose the print preview command (Ctrl + F2 )
Cut to the spike (Ctrl + F3 )
Close the window (Ctrl + F4 )
Co to the next window (Ctrl + F6 )
Insert an empty field (Ctrl + F9 )
Maximize the document window (Ctrl + F10 )
Lock a field (Ctrl + F11 )
Choose the open command (Ctrl + F12 )