bb0b4b008e
It now works like 2.7x. That said this operator is kind of incompatible with x-mirror (the way it is implemented anyways). But if people were happy with this in 2.7x they will be multi-object happier. That said, do turn off x-mirror before using this or select all bones, or just stop using this operator altogether ;) Jokes aside, the operator can also be fixed. It shouldn't be hard.