Glad to help
BTW: you could use MS OneNote (ON) instead of EN. My usage of EN is part historical: ON didn't exist when I started using EN; and part functional: I can use the EN links on Android to access the same Author Notes from Calibre Companion (or similar) - I'm not sure I could do that with ON.
I wish calibre had something similar, i.e a
calibre:///blah-blah uri to a book that I could copy and paste into another application. But, I don't expect to see my wish fulfilled any time soon.
BR