Hello and welcome to Mixxx!
And with Stanton SCS3 System its simply amazing. I bought these just because of MIxxx
Make sure and tell Stanton that for us, will ya?
But what I mean is sensitivity of pitch change (addition or substration) when I relatively move my finger.
Do you know that if you hold down the current mode button (vinyl, EQ, or whatever is currently selected,) the pitch slider makes fine adjustments (becomes alot less sensitive) for exactly this situation. (A bit like zooming up.)
If you want to change the coarse adjustment sensitivity, you can just edit the .js file and search for S2relative, then look for the comment about reducing sensitivity, and increase the denominator (number under the fraction/after the slash) to make it less sensitive.)
And second question - is there any 3M mapping with all eight trigger buttons configured to eq-kills?
No, there isn't. But it's a piece of cake to change. Open the 3m's XML file and search for back, fwd, cue_default, and play for both decks and change them to filterHighKill, filterMidKill, and filterLowKill as you like. Save the file, start Mixxx, reload the mapping, and you'll be good to go.
Mixxx Developer - Controller Specialist
Mixxx Windows package maintainer