How do I synch WiiM sub with my speakers?

[Vignus]

Hi All,

Apologies if my question is silly, but can't get my head around it and couldn't find any answer on the forum.

How do I automatically synch my WiiM Sub with the speakers? Can't find any options anywhere. Is it done automatically when I run RoomFit (which I have done), has the option been removed or is it hidden somewhere?

Please help!

Thanks