highlights & tones

Often you have a character on several layers when animating.

But when you add highlights and tones I could be easier to use all the layers as a mask. Is this possible to create a mask out of several layers?

/ Mattias

You can feed all the layers to a composite node and then use the output as a mask

I use H advanced I should have mentioned that.
So I guess it´s not possible there.

/ Mattias