It's a little hard to understand exactly what you are asking however I'll try. Jakusonfire is great at this stuff so hopefully he will confirm.
- As Jakusonfire has said, at a minimum you need to connect the mps by USB once to download the latest firmware & configure the device. Once you have done this I highly recommend you disconnect everything particularly power including the mains from the devices & AQ5, reboot the computer, and reconnect. Maybe overboard but as Namron on another forum has guided this avoids some problems (which I have experienced myself).
- once it is configured you can connect by Aquabus, USB, or both. If Aquabus only you need the 4-pin cable for power. Also this needs to be always on the Aquabus High channel. Get as many cable splitters as you need as you just daisy-chain these devices together. If you are on Aquabus only the device will show up in Aquasuite on the AQ5 tab.
- if you are on both the mps will show up on the AQ5 tab in Aquasuite and on its own tab. You have more options for monitoring for sure.
- if on USB only it will not be on the AQ5 tab (I think). I have always had either Aquabus or both connections.
Have fun.