[TxMt] tm_dialog quandry (returning array selections)

Okay, let's say I've got an NSScrollView tied to an arrayController. Heck, let's say I've got a few tied into eachother to create a tree. The plist passes nested arrays to allow a user to, say, pick a Backpack page->note->edit the note and return to TM where the script takes the updated note and returns it to Backpack.

I've got the first half all finished, but the plist that comes back to TM just contains the whole array including the edited note and there's no easy way to tell what's changed. How do I pass back the id's of the selected page/note and the note body separately or marked as modified?

Any help would be greatly appreciated.

Thanks, Brett