10.6

31Control Surfaces Support Guide
Mackie Control modifier buttons in Logic Pro
The four Modifier buttons correspond to the modifier keys on your computer keyboard (but
function independently from them). You can use these buttons, along with the appropriate
key on your computer keyboard or with the mouse or trackpad, in place of using the
corresponding modifier key. This also applies to modified Mackie Control commands.
Modifier buttons
• SHIFT: Provides an alternate function or meaning for a button.
• OPTION: The function applies to all channel strips. For relative value changes, sets the
value to its minimum, default, or maximum, depending on whether you’re increasing or
decreasing it.
• CONTROL: Hold down to turn on group clutch and temporarily disable channel strip
groups.
• CMD/ALT: Allows fine-tuning or a variation of the function.
Mackie Control automation buttons in Logic Pro
The automation buttons activate corresponding automation modes in Logic Pro. You use
the automation buttons in conjunction with the channel strip SELECT buttons.
Automation buttons
• READ/OFF: If no automation mode is active, pressing the READ/OFF button switches
between Read mode and Off.
• Read: The fader reads (follows) any existing automation data but does not record
any new automation data.
• Off: Automation is off. The fader neither sends nor receives automation data.
Existing automation data is not changed. The fader still adjusts the volume or pan
position as usual when moved.
• TOUCH: Writes new data when the fader is touched or the V-Pot is turned during
playback. Any existing automation data (of the current fader type) is replaced with new
data for as long as the control is active (while the fader is being touched or the V-Pot is
being turned).
• LATCH: Similar to Touch mode, but the control remains active, even when the fader
is no longer being touched or the V-Pot is not being turned. When you release the
fader, the current fader value replaces all existing automation data for as long as the
sequencer is in playback (or record) mode. Press STOP to prevent existing automation
data from being overwritten.
• WRITE: Overwrites all existing automation data, or creates new automation data if none
exists. Only use this option if you want to destroy all existing automation data.
Hold down the OPTION button, then press one of the Automation buttons to assign the
selected automation mode to all channels. When an automation mode has been assigned
to all channels, the corresponding automation mode button LED illuminates whenever you
hold down the OPTION button.