Hello, what needs to be added to a Sonos system to give you the option of adding a remote control (Roku in this case)?

I have 2 Five’s giving me sound from my projector. I through adding a Sub would give me the option to sync with a remote, but not luck. Just making sure I’m not missing anythign before I return the Sub.

(happy to see lots of other users requesting Sonos to introduce a physical remote control)