JLCooper FaderMaster Pro - Manual (Page 29)

Merge On
Normally, MIDI data received by FaderMaster Pro is
“unconditionally merged” with fader commands. That is, any
data that comes into FaderMaster Pro goes right back out the
MIDI output, merged with the data produced by moving a
fader.
Conditional Merge
This mode is used for replacing sections of a track of Controller
data. For example, say you have used FaderMaster Pro to
record some volume tracks on a sequencer. You may want to
redo certain parts of those tracks while leaving the rest intact.
Data coming into FaderMaster Pro is first examined by the
internal microprocessor.
If Controller data comes into FaderMaster Pro with the same
Parameter Number and MIDI channel number that a fader is set
for, that data is passed through until a fader is moved.
Then the volume data will be replaced by new data from the
fader being moved. It is this new data that is recorded onto a
new sequencer track.
Momentarily pressing SHIFT and PROG will once again allow
data to pass through for that fader (i.e. effect a punch out),
until the fader is moved again.
In other words, this mode allows the momentary interruption
of the flow of Controller data through FaderMaster Pro.
During that interruption, new MIDI data may be inserted by
moving the faders.
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