To better explain: You have a drawing on one layer but want to make a secondary layer with another so you don't mess up the original.
Example:
Oval 1 (Purple) is on one layer and Oval 2 (Green) is overlapping it on the second layer above it.

Now, I want to mask/clip the second layer so it stays within the borders of the drawing on Layer 1. This is the expected result:

In Photoshop and OpenCanvas, this is done with a click of a button I believe. I'm having trouble doing this in PaintShop. Is it not possible to do this without selecting the entire outside of Layer 1 then just erasing it on Layer 2 or am I missing something?
