MIDI Program Change and Control Change Enable
You can select whether HEX responds to MIDI Program Change (PC), 
Control Change (CC), both message types, or none.

NOTE: When using Voodoo Lab Ground Control Pro, you must disable 
both PC and CC.

The default is both PC and CC are disabled.

1.) Apply power while holding down button #3. LED #3 will flash until you release the button.

2.) Press buttons #1 and #2 according to this table.

MIDI Message Type   LED #1  LED #2
None*                OFF     OFF
PC only              ON      OFF
CC only              OFF     ON
Both PC and CC       ON      ON

*None is the correct setting for Voodoo Lab Ground Control Pro 
only.

3) Remove power when finished.

Select Control Change Numbers
Each MIDI Control Change (CC) message includes a controller number, which specifies which HEX loop to turn on or off. 
You can select from four different groups of CC numbers.

The default group is CC numbers 80-83, which means that 80 controls switch #1, 81 controls switch #2, 82 controls 
switch #3, and 83 controls switch #4.

Here’s how you select which CC numbers HEX will respond to:

1.) Apply power while holding down button #4. LED #4 will flash until you release
the button.
2.) Press buttons 1, 2 and 3 according to this table.

CC#    LED#1 LED#2 LED#3 GCX Loops
80-83  OFF   OFF    OFF   GCX#1 Loops 1-4
84-87  OFF   OFF    ON    GCX#1 Loops 5-8
88-91  OFF   ON     OFF   GCX#2 Loops 1-4
92-95  OFF   ON     ON    GCX#2 Loops 5-8
64-67  ON    OFF    OFF   GCX#3 Loops 1-4
68-71  ON    OFF    ON    GCX#3 Loops 5-8
56-59  ON    ON     OFF   GCX#4 Loops 1-4
60-63  ON    ON     ON    GCX#4 Loops 5-8

3) Remove power when finished.