MC Button inside MC Button

Hello, I’m very confused about how to make a Button inside a button.
In this example, I have a Movie Clip Button which reacts to a regular OVER action when mouse is placed over (!). New buttons will appear inside this previous button, and I would like to assign actions to this inner button but without losing the action for the external button.

You can’t. Any actions on a the outer button will disable actions on the inner button.

Maybe this will help