I'm not following this guys. I made what I believe you're asking, and I'm not seeing it working. Below you can see what I've done.

I used to be able to set where the guide camera communicated to in the Guide module. I don't see that setting there any more. Where is it?

When I set the guide camera in the Guide module, the top control panel is grayed out. If I set the main camera in the Guide module, the top controls return.

So I'm not understanding what I need to do here.