Removal of part

how do I remove the the part inside the the lock space, I wanted it to cut so there is nothing there, I need it to cut like the blue pic. Please help driving me nuts

Instead of making a cutter + stamp use this image to make just the stamp. Then make another image that is filled in black with only the hole white - then you can make a cut out cutter following these steps: How to create a 3d printed doughnut cutter with center cut out using Cookiecad

I don’t have that option cutter & imprint on my tool bar only cutter & Stamp

It’s called imprint cutter, see below. Check out the link in my last post, it has more information: