A work around that I use is to build a mini storage page in the map listing and have all the minis sitting on it. As I build a map, generally prior to a game session but I have tossed a map together in the middle of a game, I can group select my needed minis and copy them. I can then move to the map page I was was working on and paste them on the GM layer (if the players are on the map already) or the token layer and place where they are needed. Great suggestion also for the players having the ability to put there minis on a new page while the gm is busy with other stuff.