Open the Telestrator tab in the Broadcaster app and draw — it appears on air live.
Nothing needs adding to your overlay: the telestrator sits on top of every GridCast overlay. Bind Telestrator: On Air to take a drawing off screen without wiping it, and Telestrator: Clear to wipe it.
If a scene has no GridCast overlay in it, add the Telestrator (standalone) source from your overlay links at the top of the scene. Don't add both, or every stroke is drawn twice.
