Mix outpt ganging

Hi, i wish mix ganging on SQ as like on GLD. It is very usefull, when im working up to twelve mon mixes in FOH- Mon applications. We orderd the new Avantis and i saw today, that there also no mix ganging is availabel. Why ? I wont miss this usefull feature. Otherwise i have to work with GLD for Mon Mix and Avantis for FOH with 48khz. Than i miss the deep processing from our SQ, if i use GLD further. Is tere anybody who wishes also mix ganging?