^A lesson I myself always forget. I still draw everything on a single layer in Corel. It does bite me in the ass on occassion. But I'm too busy drawing to remember abou silly things like layers.
Really? I can't image doing something like that on a single layer! Madness!
ARRANGE>ORDER>BRING TO FRONT or SEND TO BACK.
Though sometimes some creative bringing and sending gymnastics are required.