TLDR the whole thread, but there is a workaround to copying just the kit between patterns. Long-winded, but possible…
- save whole project
- copy the pattern that contains kit you want to add to other patterns
- paste the copied pattern over the pattern/s that you wish to give this kit to
- use the pattern menu to reload ‘sequence data only’ on those patterns
voila! they now have the same kit. for my purposes, this works quite well. hoping that elektron add a simpler method to copy kit only, though 