Nested mouseEnabled = false;

I have button that is working perfectly. BUT… I have two buttons that kinda overlap, and i have a nested clip inside my main button that works great. But I can’t kill the movieClip behind the main button.

I tried:

mainBtn.behindGrapic.mouseEnabled.mouseEnabled = false;
also tried this:

mainBtn.behindGrapic.mouseChildren = false;

both did not work.