But, you can’t change attributes as the watch-created notes use a prototype that sets $ReadOnly (q.v. as well as Non-editable notes).
So, ‘watched’ notes are like an external non-editable alias to an external resource: a one way view on to some external text. Think of it as being akin to an agent. If the queried source changes, new aliases (watched notes) overwriting the existing one and showing the current state of the external resource. The only 3 attributes of real note, apart from those accounting the watch process, are $Name, $Text, and $Tags. Whether the watched note is recreated or updated is actually moot because all three are read-only. Tinderbox’s own Help is, I think, unintentionally misleading here by stating:
The imported notes inherit from a built-in prototype named “Imported From Finder,” allowing you to set common displayed attributes or visual appearance.
As the watched notes’ prototype sets $ReadOnly—and which it must be presumed the user should not disable, that whilst $DisplayedAttributes can be altered neither the Displayed Attributes table nor Get Info pop-up can be used to edit those attributes.
The clear implication is that watched notes are literally to be read only. If you wish to use the notes’ data in a normal note, the data must first be moved/copied out of the watched notes’ container in the TBX. Remember this is a watch feature not a sync feature.
If copying the watched note elsewhere in your TBX, ensure you remove the “Imported from Finder” prototype. You might also think to alter the note’s $Name, e.g. by removing the file extension that the watched folder note adds by default. IOW, a watched folder note “agenda.tbx” might get copied elsewhere and renamed “Agenda”†.
If your next question is how do I keep those two notes’ $Text reconciled, I think that’s a a separate question/thread.
Remember that, however much one may wish otherwise: watch != sync.
†. If you are going to keep the same $Name, I strongly suggest your watched folder goes at the end of the root outline. this places the duplicate-named notes last by $OutlineOrder. Recall that when expecting to match one item