I'm awaiting delivery of my Keystep 37 (Black so not released for a couple of weeks!) but as far as I understand 16 banks of MIDI CC are available
The V collection/Analog Lab controller presets are simply collections of MIDI CC's - so why not simply create your own preset?
Alternatively, you could map the Keystep to the CC's of something like a MiniLab or KeyLab & then just use those presets.
(These CC's are effectively the same as per the 'Generic Controller' presets).
I've just sold my KeyLab Mk2 in favour of a Native Instruments S61 Mk2 - it actually maps to Arturia software better than Arturia controllers, apart from Analog Lab - for this I've simply mapped the S61 Mk2's encoders in MIDI mode to the same CC's used by the KeyLab Mk2.
I've also done the same for my portable controllers (M-Audio Oxygen Pro Mini & AKAI MPK Mini Mk3) - mapped their controls to those as per KeyLab Mk2.
Works a treat.