T8S ToneMatch Master Volume knob has no affect on volume of Main Out via XLR to S! Pro

Portable PA
1

The Master Volume knob on my new T8S ToneMatch has no affect on Main Out volume to S1 Pro via XLR — I can only change volume on a channel-by-channel basis. Am I missing something here? I updated firmware to 1.1.4

2

Found the answer to a previous post from 2018 — set Master Out to "Post Master Volume":

https://community.bose.com/t5/Portable-PA/T8s-mixer-master-volume-has-no-effect-on-volume/m-p/518274