Suppose I make a selection and I save it. It becomes an alpha channel. Later I can load that selection. What can I do with it once I've loaded it? I think this is an important topic because I think there are lots of possibilities. I've tried researching this but all I get are tutorials on how to just load a selection (duh, go to: Select \ Load Selection - gee, I already knew that). Does anyone know of any good tutorials or videos regarding what you can actually do with selections\alpha channels once you've loaded them?