Deleting kits so that Overbridge can save in their slot?

I’m having trouble saving edited kits in Overbridge. I usually edit kits and then save them as new versions, but this doesn’t seem possible in OB (no ‘Save as’ or copy command that I can see).

The only option is to ‘Save to empty’ and this dumps it toward the end of the list in the 80s (I only have around 10 active kits at any one time).

I can’t see how to clear slots though, so that OB saves it towards the beginning of the list and when I select clear kit and save it’s still counted as a non-empty kit. Any way to delete kits completely so that OB saves them in a sensible place, or any workaround?