RMS/VU metering

I do a lot of broadcast work with the Wing, would it be possible to implement some sort of RMS metering integrated over 300ms with a ‘peak RMS’ hold on channels and a LUFS meter for busses that integrates until reset?

I currently hook up through USB to my PC and use MV meter or Youlean etc, but it’s clunky.

Yamaha has implemented something similar on the DM3, it isn’t perfect but helps a lot.