I made a "how to connect VEPro to DP" video. It shows DP utilizing 48 MIDI ports. I also briefly touch on a couple related DP tips like MIDI Device Groups (which I plan on discussing in detail in a later video).
I also suggest that for your main templates at least, save your instances as vi frames and the project's VEPro Server's metaframe in your DP project folder. If anything ever goes wrong with instances not loading all you have to do is select all of your vi frames in the Finder and then drag and drop them into the VEPro server window. Then in DP add VEPro server interfaces and connect. You'll see all of you instances in the server interface window ready to be connected to. Then save DP.
Enjoy!
Regards, Steve Steele https://www.stevesteele.com