Quote Originally Posted by ravells View Post
Ahs yes, madcow has the right of it. Also, if you were going to use a filter, the overlay wouldn't work, but as madcow says, you could always merge down and then apply the filter but sometimes that won't work depending on your layer construction and blend modes.
I think it's possible to use a filter on an overlay layer? Just get the layer setup correctl. Not 100% sure and can't check it now.