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658 Chapter 22 Control Surface Support
Setup Window Parameters
Control Surface Groups
If you have multiple control surface units, you define how they relate to each other, and
can build Control Surface Groups. A Control Surface Group consists of a number of
control surface units of the same kind which are combined to create a single, unified
(and larger) control surface.
You can build up to 20 Control Surface Groups. Each “group” can consist of any number
of physical units. The only limiting factor is the number of available MIDI In/Out ports.
When multiple control surface units are combined, you can independently define the
default behavior for each physical device. This is discussed in the Setup Window Device
Parameters section.
• To build a Control Surface Group out of several units, simply arrange their icons in
the Setup window in a single horizontal row by dragging each icon to the desired
onscreen location. The order of the icons from left to right also defines how the
tracks and parameters are arranged on the units.
• To use two control surfaces independently, arrange them in separate rows—that is
one above the other.
Here is an example with two Logic Control, three Logic Control XT units and a
HUI: Computer icon connected to three rows, as below:
Row 1—XT #1 | XT #2 | Logic Control #1
Row 2—Logic Control #2 | XT #3
Row 3—HUI
The top row, consisting of Logic Control XT #1, Logic Control XT #2 and Logic Control
#1 form a single Control Surface Group with 24 channels. XT #1 controls channels 1 to
8, XT #2 controls channels 9 to 16, and Logic Control #1 handles channels 17 to 24.
Logic Control #2 and Logic Control XT #3 form a second Control Surface Group,
displaying, say instruments (on channels 1 to 8) and busses (on channels 9 to 16).
The HUI forms a single unit control surface group.
Each Control Surface Group has individual settings, such as Flip Mode, Fader Bank Offset,
Plug-in Parameter Bank Offset and others. This allows you to access, edit, and automate
different sections of Logic’s mixer.
In our example, the three units in the top row could be used for control over audio
tracks and MIDI channels. In the middle row, Logic Control #2 could be used for Audio
Instrument channels 1 to 8, and XT #3 could be used for busses. The HUI might edit
group definitions. The physical placement of units, and the way you use them, is
entirely up to you.