History brush

Hello all, just I got the idea while playing in the nomad while texturing with alpha brush (big rocks) and i wanted to revert alpha brush on part of mesh…
What about something like history brush in photoshop. Because Nomad has quite smart undo and previous changes are stored… so you just select few step back in history and brush over model where you want return. I know i can do it with mask brush, but this could be faster workflow.

Dunno if something like this is in any other sculpt app…

I like the idea very much. I do hope it will make it into Nomad.
Meanwhile you should have a look at layers and del layers brush.
It does same if you plan your work on it.