If you right click on the Rack instrument. You should see remote Control editor at the bottom of the menu.
The first 4 controls are the once you are seeing on the 4 knobs for the rack instrument.
So if you hit the learn function on this remote, you can open up the Groove Agent and assign the 4 controls you want.
Remeber to hit apply on the remote editor.
If you have QC setup for the mixer (not VST mixer) You can go to the QC on the midi track, use that funny arrow to select that you want QC from the plugin, And the remotes will sync.
It is a bit messy. Caus those 4 quick knobs on the rack instruments are part of the generic remote editor, wich is for the $$$$ controllers. The QC are not slaved to that generic remote editor. But you can dump settings from it to the QC. So your graphic syncs up. But for getting some QC for your mouse wheel, You need to use the generic remote editor to assign the 4 controls.