Hi Tyler,
Good to hear you are using our devices. And, having looked at your backups, you've come along very nicely indeed!
I have a few pointers for you, to guide you on the way to how you want to have your system set up.
First, an FYI: There are two ways to 'talk' between the devices via network messages. One is the API, pre-programmed behaviour triggered by specific network messages. Requiring programming of the outgoing message only.
And the second is through custom messages, requiring you to program the behaviour on both devices yourself.
The API options are described in the manuals for both devices, which you can
find on our downloads page. They are the very last appendices to both manuals.
Second: the best idea is to have the B-Station send a message to the CueCore, but NOT set its own button-LED colour and intensity. Rather, have the CueCore send that information to the B-Stations as a result of the state of the Playback. (hint: Use the 'Playback' Action List for this)
See the attached backups for how that works on button 1

Then finally, yes it is very possible to program the 'master' intensity via the two buttons. Again: See the API messages available

. And you can program an appropriate feedback in the same way as in the previous point.
I've purposely not done all the programming for you, as I believe you will learn more by hands-on experiencing it. I hope you don't mind...
Kind regards,