Nice to see your are constructing a nice template for control your stuff.
Based on what I see you use the horizontal slider for move with single control across parameters.
I think this not is the correct way to do, I thing you should do with buttons.
The problem or limitation right now is with current buttons you cant do with something like glissando mode.
I have on my to-do enable in buttons something like glissando, you know you can displace your finger over all buttons......something like piano glissando.
I can do this with current buttons, what enable the possibility of create a real piano keys , and create or enable new text decoration act as a button, in that way you can use text as direct access or slide your finger over all your options, LEGATO <-> LONG <-> FLUTTER <-> HARMONICS <-> MACTO <-> TENUTO <-> STACATO etc.
At same time you have a better indication of what is ON than a slider with text under.
What you think? That way not be better?
This is exactly what I already have on my to-do.
Use a slider as selector will be always a limited non accurate way, anyway with this mode and if you software send MIDI to chameleon also you can combine with a slider, if not yo9u have a nice way work as real selector with touch slide feature.