
534 Using the APC40
Device Controls.
The Track Selection buttons route the eight endless encoders to the first device or Rack on that
track, with LED rings to automatically show you the levels on the selected parameter.
Four buttons below the dials give you additional control options. Clip/Track lets you switch be-
tween viewing the devices on a track or the properties of a track’s clip in the currently selected
scene. Device On/Off turns the currently selected device on or off. Device Left and Device Right
(indicated by two arrows) shift you one step sideways along a track’s device chain.
Some effects or virtual instruments have more than eight parameters. When holding down the
Shift button, these eight buttons let you select eight banks of eight device parameter controls. For
more information, see the Control Surface Reference Lesson.
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