Roland SI-24 channel assign controls in Logic Pro

The table outlines the channel assign controls and their assignments.

Note: A modifier button (such as SHIFT) shown below a button description indicates that the button has an alternate use while the modifier is held down.

Control	Modifier	Assignment
INPUT		Shows the first 12 audio input channel strips.
	SHIFT	Shows the first 12 MIDI channel strips.
OUTPUT		Shows the first 12 output channel strips: 1: Output 1–2 (default surround assignment: front) 2: Output 3–4 (default surround assignment: rear) 3: Output 5 (default surround assignment: center) 4: Output 6 (default surround assignment: LFE) 5: Output 7–8 (digital out)
	SHIFT	Shows the first 12 audio channels.
BUS		Shows the first 12 aux channels.
	SHIFT	Shows the first 12 instrument channels.
Tr 1 to 12		Switches to Tracks view and shows the first 12 channels.
Tr 13 to 24		Switches to Tracks view and displays channel 13 to 24.

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Control Surfaces Support Guide for Logic Pro X

Roland SI-24 channel assign controls in Logic Pro