Toggle Horizontal and vertical maximization/unmaximization shortcut

[Albert Vilella <avilella gmail com>]

Hi,

I use the different maximization options in gnome with keyboard
shortcuts, so that I can max/unmax the windows faster than with the
mouse.

I like the option that the same shortcut for maximize is used to
unmaximize. For example, using "Alt"+"-", I can toggle between max and
unmax state.

The thing is that this is not true for horizontal and vertical
maximizations: once I have maximized with the shortcut, for example,
with "Alt"+".", I won't go to the unmaximized state by typing the same
shortcut again.

So my request would be:

How can I toggle for horizontal and vertical max/unmax?
Can you add that feature?

Bests,

    Albert.