Thanks, Mark: the terminology can get confusing so I appreciate you clarifying it.
BTW, there’s a rough edge in the opt-tab cycle: it doesn’t always land in the top line of the KA, but often towards the bottom. It seems to happen when there are several KAs in the list:
Enter info into an attribute towards the bottom of the list, opt-tab, down to the next item, opt-tab twice to get back to the KAs. The focus will often go to the attribute below the last one you filled in for the previous note.