Allow bulk edit of multiple groups

[#1]

Now that we can attach custom forms to group objects (thank you!), can we have the ability to edit multiple groups at once?

I am updating all our groups with custom data but it's slow and tedious without the ability to edit multiple groups at once.

[#2]

Agree with this - also would like to bulk edit groups to be able to add users to all the groups they should be a part of.