How about an ability to assign colors to presets in the bank/menu view? Right now you can scroll through banks and presets and they are displayed in white text on a black background. I think it would be useful to be able to assign color blocks to presets and banks - for easier grouping and identification.
I use my QC with 2 different amps and my desktop. I would color code my presets for each use case. That way I could tell quickly which presets are for each of my use cases. Yes I can read and label them, but adding colors would be that much better.