Most objects will block or intercept clicks if they are on top of another one, so your button might have areas that won’t click. Also if the alpha of that object (or an alpha-settable area of it) is 0, I think you will then click through it… though not for a button, which still clicks in its full square area. Not sure what happens with all possible objects on this.

But any object with "Ignore Click" checked should let you click through to the next interactive object in the stack, so do that for your labels or text.