I have an ulterior motive for this suggestion but I think it could have a lot of uses. For example, if you had an invisible monster riding a horse, you could group the monster (GM layer) with the horse (token layer) and when you move either they move together. The main thing I'd like to see, though, is the ability to group things on layers with other objects on the dynamic lighting layer. For example, if you have a statue with DL drawn around it, and you move the statue (trap, puzzle, etc.) you have to separately move the dynamic lighting to its new location. Also, this could eliminate most of the tedium with dynamic lighting and doors, as you could just rotate or move the door on the token layer and have the DL line move with it. I think this is better than a "door specific" type of solution and would fit with a mechanic that already exists (grouping). I'm sure people could come up with more uses for this, like having GM notes follow around a token or a map element (torch?) follow around a token. Right now the DL layer works great whenever you are setting up the game but it's honestly a pain to use during gameplay. It would be nice if you could affect the layer as the map changes, for doors, curtains, movable objects, gas clouds, areas of darkness, collapsing rubble, large monsters...all these things can block line of sight but currently are very cumbersome to keep up with in play. I know you can do some of this with the API (although I haven't found a reliable way to position DL objects along with tokens, they always get "lost") but I think it would benefit everyone who uses DL and those who don't want to deal with potentially complex, unreliable code just to open a door. Let me know what you think!