4. In this example, rooms 1 and 2 are grouped to form Zone A, room 3 is isolated to form
Zone B, and rooms 4 and 5 are grouped together to form Zone C. To configure the zones
in this way, set the MT700 Stingray Mixer for room 2 to secondary, the mixer for room 3
to primary, and leave the mixers for rooms 4 and 5 set to primary and secondary status,
respectively.