The control room is where your operator puts graphics on air by hand. You can create one straight from your theme profile.
Generate a control room
Open the theme profile and go to DETAILS & SETTINGS.
Under Automation & Control Room, find the control room row and click GENERATE.
A new control room is created on your theme and assigned to the profile. It's empty to start with, so add the graphics you want. See Adding your graphics.
Use a control room you already have
Click ASSIGN on the control room row and choose it. You'll see all your control rooms, and the theme each runs on, under Themes > Control Rooms.
Good to know: To use a different control room for just one match, change it in that match's overlay settings. See Connecting your control room to a match.
Next: Editing a theme profile