ddi-400 rekordbox bluetooth speaker MacBook + headphone out from controller

I have the ddi-400 and would like to have the master output as a set of bluetooth speakers and then use the controllers headphone output for my headphones but I can't get this option to work with my setup.

I have a macbook pro with mojave 10.14.6 installed.  I try to click on the output audio checkbox for PC and it won't allow it. it keeps resetting. Any suggestions or workarounds? I would love to see an audio profile settings setup. Im very new to this all