I made this a sticky here because the original thread is impossible to find, as it lacks ANY keywords that would make it show up in a forum or Google search (UFX mixer standalone display submix edit mixing setup whatever). Same is true for the pdf document, which is so badly named that it is not possible to find it.

Fellow user Philippe Mustang made a simple one page tutorial on how to edit submixes directly at the unit. The complete thread is here:

http://www.rme-audio.de/forum/viewtopic … 758#p60758

The document is available here:

http://lepetitgroupedumardi.free.fr/TOP … dalone.pdf

Thanks Philippe!