You can set up a Billing Plan to unlock multiple Premium Chatrooms. That means that a member who purchases access to Chatroom A will get access to Chatroom B and vice versa.

This can be easily done by assigning the Billing Plan to all Premium Chatrooms you wish to unlock. Navigate to Dashboard → Chatrooms → #Chatroom Name → Billing for each chatroom and switch on the Assign toggle.

First Premium Chatroom:

Second Premium Chatroom:

With the above set-up a member who purchases the "Monthly Billing Plan" unlocks the #Premium Signals and #Macro Analysis chatrooms.

Finally the team member will be presented with the following purchase option: