I know this is an old thread but I have the same problem.
I run Helix Floor live and would like to use Native for both editing my presets for live playing and for rehearsal at home.
So far I have managed to display the foot switch assignments in Native but it seems its neither possible to edit them, trigger them manually via the UI nor re-assign them to the DAW switches.
That would be such an important feature, otherwise importing the presets is sort of useless for me 'cause I got some crazy settings going on with the foot switches changing several parameters of several blocks.
Does anyone have an idea or solution?