For example, if i had a picture of a ball, taken from a photo, I cut it from the photo and paste it to a new page. I now want to airbrush the edges of the ball, i want to put the ball on 3 different pages with different backgrounds, all different colours. Could I airbrush the ball once in one colour and have the capability to recreate the airbrush job in the 2 other colours i want for the two other pages? This would mean i wouldnt have to airbrush it 3 times with 3 different colours. I’m sorry if this doesnt make sense, or if its really simple.
If you can put the airbrushed parts on their own layer, it should be possible to change hue only for (a copy of) that layer