Hey!!
What controller do you use? I have a Keylab Mk I, and it automatically goes in the "drawbar way". You can choose your controller at the Midi Settings on the instrument (maybe it works). If not, you can change the behaviour of your faders at Midi Control Center (if you have an Arturia controller). Also, as you say, if you invert the min and max at the Midi Settings in the same instrument, it should work.
Good luck!