Fixture Control Tracks:
Fixture Control Tracks let you control individual fixtures by overriding the Master Track. This is helpful if you want to control fixtures independently of the Master Track. For example, you might want some Par Cans to be a different colour or you might want a couple of moving heads to position themselves differently to the rest. Fixture Control Tracks make this easy, as they allow you to customise any audio file in your music library for a particular venue or lighting rig.