To add a diary note to a provider's diary that is applicable for the entire day rather than a specific time slot:
Go to the date that the diary note is for.
Click Add diary note below the treatment provider's name.
Type the note and click OK.
Diary notes that have been added are displayed at the top of the treatment provider's diary on the day that the note is for and are visible to all users.
Books and Overviews in the Planner Window
Using the Closures and Holidays Feature