here is a bpatcher click through bug using multiple bpatchers.

If you have 2 overlapping bpatchers with click through enabled, inside another bpatcher with click through enabled then the click through on the deepest two is disabled.

bpatcher-bug-and-example

The toggles kind of work. the bottom most toggle will not work in the overlapping area of the topmost bpatcher, but the topmost bpatcher's toggle works fine.

I'm not totally sure this is supported, but i'll check.

The toggles kind of work.  the bottom most toggle will not work in the overlapping area of the topmost bpatcher, but the topmost bpatcher's toggle works fine.  

What do you mean the toggles kind of work?

You can't click toggle that the bpatcher is over.

What do you mean the toggles kind of work? 

correct, that is what I said in my post. The bottom toggle does not work where the top bpatcher overlaps with it.

This is how things are right now, and something that has been submitted as a bug, though I wouldn't expect a fix soon.

correct, that is what I said in my post.  The bottom toggle does not work where the top bpatcher overlaps with it.

bpatcher bug and example