An option that when enabled, will allow the user to Doubleclick a windows border, to make the window fill the screen in that direction.

Doubleclicking the titlebar of a window, maximizes the window. Which is great...
But doubleclicking a windows border does nothing...

Im missing a feature in 'Unity Tweak Tool' that when enabled, allows me to doubleclick a windows border, to make it expande in that direction, to the edge of the screen.

Fx. Doubleclicking the right border of a window, will make the window stretch/expand, until it reaches the right edge of the screen.

First of all I think this would be a very intuitive behavior.
Resizing a window as it is now, takes time and with a notebook's trackpad can sometimes be a little difficult.