How can I set the gradient mask to keep what i've masked so far and then add to that mask?
For a while when I used the gradient mask, I was able to use the mask additively where instead of cancelling the mask I just drew and rewriting it over my next "stroke" it would keep what I created and then add to that mask?
Basically I have several sides of an image that I want to mask via opacity, so I would prefer not to have to keep applying the mask and then creating another one, but to have the opacity mask strokes be cumulative.
Currently I can create an opacity mask but when I draw another mask, it just cancels the previous gradient mask and then replaces it with the new mask.
Is there a setting I can change where it will be cumulative?
