On a small laptop screen, the VM console toolbar (Run/Pause/Shutdown),
and even the drop down menu uses up too much screen area to be usable.
For example, on a 1200x800 laptop screen, a 1024x768 VM barely has
enough room to fit the framebuffer on the screen with a title bar.
Adding any sort of menus gets in the way even worse.  I would propose
F11 as the key to use to make it consistent with the same behavior in a
typical web browser.