You need zones. The MS200 is the cheapest.

You also need to connect these zones to your MC200. Wired is best. Powerline also can work.

Once you've got your zones you need to be able to plug these into an amp and speakers.

Alternatively some Sooloos kit have multiple analogue outs you could use.

Sooloos, Roon, G series (with LPS upgrade), 800 series (with LPS upgrade), HD621, AC200, Prime and PS, DSPs old and new.

Purdeys, Moke, Leica, 'Blad. Only the best.