Undo from someone else

Hi, love the amount of work you guys have done for flockmod! Just a thought I wanted to share. Would it be possible to implement an undo system that fetches the stored boards from other users in the room?

Fairly often a moderator would get lag-kicked, and only users without the undo capability are around at those times, so it's a real pain when a troll strikes while the moderator has no stored boards to undo back to. So I think this would be a really useful feature to make it easier to save people's precious artwork that some may have event spent hours working on.

As I've said before, you guys are doing a wonderful job with the flockmod app, and it is one of the best drawing apps I've come across.