I have two jpegs of homes - one with a porch and one without. I have used the shape tool to select the porch in the one picture (It turns black as it should and copied it). The question is how to I paste it onto the other picture so that it shows up as a porch and not a 'black' selection? I apologize for the dumb question but at my age, I need all the help I can get. Thank you.