I have tried this method, but I have a few questions:
Most of the customers works or master model (drawing and part separate files) or drawing and part in 1 file.
so if you want to use both methods you need to create 2 types of templates.
The [AUTHOR] is always showing when the attribute is not filled in. So it's a good reminder for the engineers to see if they still need to fill in some attributes for the template. (make sure that you create the attributes not in properties but in the attribute templates. by doing this it always will show the attribute in properties but when the deleted the attribute it will be set to no value instead of completely deleted.)
if you can to a cell of the note, use rmb, go to edit text. in the Edit text dialog box go to symbols->category "relationships"-> insert part attribute. here you can select the attributes that are in the part.