I tried the multiple Sheets approach last night and it worked out nicely. (I shouldn't have said multiple layers, Sheets is the way to go). I am happy with how that works, but have to be really careful when I'm placing symbols, so I always select the right sheet first. I renamed all the standard sheets, so when I do put a symbol in the default sheet by mistake it automatically creates a new sheet on the top of the stack and it is pretty easy to correct. I'm thinking that a hybrid strategy between what you guys have suggested is the best approach. Finish the map and then save two copies of the map with different sheets visible and different hotspots.

There's no way to create hotspots that show and hide sheets is there?

Uh oh, my boss just got to work. Gotta go.

Mike