What technique are you using to map?
Are you using MapMap Module or through a photo mask?
If it is through a photo mask, Id recommend you map using the global mask module, for it is easy for you to change the mask (yo can have any number of masks or combinations of it)and have all ten layers free to mix and manipulate video with the selected mask.
No se quien soy, pero se de que huyo. M.Montaigne
Twitter: @popversus / @esegabbo