When in the club:
Click the Members button and the unfiltered Members in the club list shows
You can filter :
MEMBERS in CLUB or in ROOM -> ALL or UNSEATED
FRIENDS in CLUB or in ROOM -> ALL or UNSEATED
-in Room is the room you're in.
-Everything in Blue in the club is clickable.
When a player is seated - most likely they are playing or about to play.
A member can also be spectating or do nothing (perhaps waiting for partner) - then it will say lurking.
Further filtering is on our To-Do list to be developed.