Comment 3 for bug 623724

It's not so much adding or removing from the group, that can be done with a simple cut and paste, but the fact that it's not always clear which group you're editing. Perhaps it may be a better idea to have a keyboard shortcut that turns everything not in the current group to zero opacity temporarily? It's also possible to jump out of one group and into another too easily. It wasn't obvious to me when I "entered" a group that everything I created from that point on was inside the group.