Would it be possible to allow Hold to select notes for entering them into the Kiwi 3P Chord Mode? I believe the Korg Polysix allows this: pressing Chord Memory memorizes the currently selected notes whether held down physically on keyboard or electronically via Hold switch.

I find it cumbersome to enter chords spanning multiple octaves on the Kiwi 3P as the keys must be physically held down while also pressing Key Transpose (unless there is some button combo I don't know).