For those who, like me, may be new to K37, this is how to map K37 CCs to Arturia synths.
You have to be in bank mode (shift chord) and obviously in the midi input of the synth.
Assume you're in a K37 bank mode (eg. b1)
On the Arturia synth, click on The Parameters icon (wheel) next to Advanced.
click on the Midi tab
click on Learn
Case1: With Analog Lab, Pigment and some other synths, the macro knobs are obvious.
In learn mode, you click on the first synth macro, move slightly the first K37 knob, repeat for all macros.
Don't forget to save your Midi config.
Case 2: With Arturia synths that have macros at the bottom:
In learn mode, click on bottom macro (eg. Brightness), the Brightness parameter appears on the control list
move the first K37 knob slightly (change might not show in the control list)
repeat for all macros
Don't forget to save your Midi config.
With the organs (Vox, B3), the procedure is the same but since organ keyboards are mapped into different channels, you must repeat the procedure for each channel (different K37 banks or different Midi config files).
Case 3: In old Stage V piano (Stage V2 has macros), there are no macros, so you have to map the K37 knobs to the most useful parameters.
Hope it might be useful for someone.