Mackie DL806 Reference Manual page 125

Multiple mute groups may be enabled simultaneously. This would be particularly helpful
in a larger production featuring a rotating ensemble of musicians on stage. You could
also use mute groups for scenes in a theater production, a variety of services in a House
of Worship and more. The possibilities are endless!
Snapshots will save your mute group assignments, but not the mute group master enables!
In other words, you can enable/disable the mute group masters regardless of how they
were stored as a snapshot. If you need more than four different mute groups in the same
show, save the mute group assignments as snapshots and recall when needed!
Mackie DL806 and DL1608 Reference Guide
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