Ungroup Multiple Groups at Once

Selecting multiple groups, shift+G should ungroup them all. Currently we have to ungroup all individually.

Stole with pride from Eledryll: "I'd love a shortcut to ungroup several groups at once. Particularly with the new copy-paste, it tends to get group-heavy. and going through them one by one to shift one hue on one object in each group is a huge time-waster."