Add room console button to add roles to the room

[JPGarCar]

Is your feature request related to a problem? Please describe.
Sometimes we want to build an activity, but start with staff only, then add other roles.

Describe the solution you'd like
Add a button to the consol that promts for a new role to add to the activity.

Describe alternatives you've considered
No alternatives so far.

Additional context
Add any other context or screenshots about the feature request here.