I think that retrocity is asking you are the files are the same size for example if you are working in 500x500px and copy the part of it to another file but smaller in size 250x250px it will fill up youre screen, but the better way is to select the area and then drag and drop with the move tool from one file to another, then simply press CTRL+T to get the free transform tool and scale it up or down in size. Since its on transparent layer delete the background layer and save as .TIFF it will save you transparency :) Hope this will help you :) Tihomir

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