When I [LOAD KIT] for a previously saved, named Kit, on an empty Pattern, that Kit gets associated with the Pattern, as far as I can see in the UI (I wasn’t listening or playing for this test). If I then navigate to a new empty Pattern, the temporary association to the previous Kit gets made (the Kit’s slot id flashes in the top left of the screen). If I then navigate back to the (empty) Pattern where I loaded my Kit, the association is still there. The act of associating the Kit to the Pattern makes it change from unlit to lit in Red on the Trig when I hold the relevant [Bank] button.
This even works when loading a previously unused, default-named, “empty” kit slot into a previously unused, empty Pattern. (As far as I can tell, the “empty” Kits are just the default Kit with a name like “Kit 94”)
I’m using a mkII. It would be strange if the mkI was different in this regard.
What exactly are you trying to do, in as much detail as possible?