Yes, this should work without any problems. The question is how much else you want to mount on the board. My second board is equipped with the part. If I ever make it into the rehearsal room I have to try that out, but I don’t know why that should fail. The 2A 12V output directly passes the current from the associated power supply. Theoretically, you can also use the two normal, switchable outputs with a current doubler, but then occupies two outputs.
So if you connect the QC to the separate 2A 12 V output, you still have another 2A for all 8 remaining outputs.
What is possible with the Palmer can be seen in the picture I attached. This was the maximum configuration the Borad had. Below is a Rochboard mod 5 IR DI box and two tone buffers.
Here, by the way, you can see the real consumption of various pedals. Simply add up and see if it is enough.
However, my QC now runs on battery power and I would no longer want to do without it.