Hi

What l have done and it works is to connect the 210 to the 5200SE master SpeakerLink.
The master connected to the front slave,

The G65 is connected master out to MMHR in on 210. This then allows full use of the G65 for all other inputs.

I do need to have the G65 on when playing 210 / MQA which might be a configuration issue

Otherwise MQA front 2 speakers, 5.1 for everything else ie Sky Q, Oppo, ...

Best
Colin

#1 DSP9,7200HCSE Upgrade,G65, DSP3200, HD621, Oppo 105D Audiocom Signature BDP, Sky Q, etc.
#2 Prime Headphone and Power Supply, Sennheiser 800.
#3 F80 Director, Panasonic TXP60ZT65, 210, Zen Mk111, Chord 8 Switch, Roon, Tidal, Explorer2, Apple iPad Pro 2nd gen.Chord M6 mains block.