I'm trying Helix Native on Ableton 10 & Macbook 2012
Plugin Automation
Simply Automation is OK (like all Plugin) but is "limited" to 16 Discrete controllers and 16 Switches. OK BETTER THAN Pod pro hd limited to 2 Midi CC and 9 switches....
With Ableton MIDI Mapping it's easy to automate "HW Remote controller"->"plugin linear controller" ->"Helix effect parameter".
Midi CC
For Midi CC i've a "little" issue.. With manually assignment works...Midi learn doesn't work... (midi green light flash but doens't map...)
And... sometimes, on change preset, It losts assignment (example: overdrive "drive" param).
Anyway for ableton & Helix Native Midi CC Mapping, you need 2 Tracks:
Audio track with plugin helix (ok it's easy..)
Midi Track "always on" (no auto) with input source on midi controller (example Akai Lpd8) and output to Audio track | Helix Native. Be sure that on Ableton midi preferences your controller is set "ON in "Track input" e not only "remote input". Remote input is used only for first scenario (Plugin automation)