Hi Andi,
the processing (PEQ, GEQ and Comp) you can control with SQ4You is the processing of your mixbus. In other words: the processing effects your mix globally and not your individual channels.
If you want control over the processing of individual channels like kick, snare, etc. you (or your soundengineer) will need to copy those to unused channels. You can then download the SQ MixPad App and control those completely. Be aware: The maximum is 3 MixPad apps and 5SQ4You apps, IIRC.
Hope that helps a bit!
Cheers
André