An extra GM Layer that would be above the Map Layer, but below the Token and GM layers that exist now. An extra layer between the Map and Token layers for the GM could be useful for hiding traps, lurking monsters, and other things that we want to see as GM's but don't want to block tokens. I personally would like to place room numbers on my maps that players don't see, and don't want to edit all the images to do it. While this layer would be blocked by tokens, and thus maybe hidden from a GM, there's always the main GM layer we have now that GMs can use for putting traps on that won't be hidden by tokens, etc. If they wish to continue. I know I could use an extra layer, which I'd dub the "GM Map Layer" between the Map and Token layers, and so am recommending it here.