Apple Soundtrack Pro 3 - Manual (Page 126)

Each submix has a color label, a name, an icon, and a set of controls that appear in the
submix’s header in the Timeline and in its channel strip in the Mixer. Submix controls
include a volume slider, a pop-up menu where you can choose the physical output
channels for the submix, and buttons to mute or solo the submix and add effects. Each
submix channel strip includes level meters you can use to watch the submix’s levels and
a set of effects slots where you can add and order effects and sends. Submixes do not
have pan controls or Arm for Recording buttons.
Tracks, busses, and submixes in the Timeline
Tracks, busses, and submixes in the Mixer
For information about working with tracks, busses, and submixes in the Timeline, see
Working with Tracks, Busses, and Submixes in the Timeline . For information about working
with tracks, busses, and submixes in the Mixer, see Using Sends and Busses .
126 Chapter 5 Working with Multitrack Projects