Instead of Alt-tab, use Alt-` to switch between the several terminal windows opened. Also, for the menus there's the Hud. It's a keyboard interface for all men

Instead of Alt-tab, use Alt-` to switch between the several terminal windows opened. Also, for the menus there's the Hud. It's a keyboard interface for all menus on top. So press Alt, release the key, and then type 'Save as' when the Hud appears. It's the same for all other menu entries.