I'd recommend creating a custom property in your drawing and linking all the notes to this one property. Then you only need to enter the information once (at File > Properties...), and won't need to go into "Edit sheet format" mode at all.
After you have this set up be sure to save your sheet format first, then the drawing template. Then all drawings started with this drawing template will be set up already and you won't need to repeat the process for each new drawing. There is more information about sheet formats and drawing templates at #2 at Frequently Asked Forum Questions if you have questions about it.
I hope this helps,