I wish I could vote more often than once. This is a very important feature, especially if one of the advertised use cases of the mono output is as a crossover sub feed. I want to upgrade my church from our original studiolive 24.4.2 to the rm32ai + cs18ai, but I cannot if the mono can't be linked to the mains. I don't want to have to train my volunteer sound team to adjust two faders for overall volume, especially if the center one is labeled "Flex Master". Hopefully this is a simple feature to implement. Extremely important!