How do I change audience permissions for a room?

You need to be a room admin or host to change audience permissions. Select the room you want to modify audience permissions for. Click on the triple dot menu either within the room or the sidebar.

Select 'Change Permissions'. Once you do, you'll see the audience permissions of the room in the sidebar.

Click on the triple dot menu next to a members' name to change room roles.

If the room admin is also a space owner, under a member's name, you can also quickly change space role of someone from guest to team member or vice-versa.