To retain View column sorting
Notes lets you save your particular database column sorts. This is particularly helpful if you always want to view your new mail at the top, rather than the bottom.
1. Choose File - Preferences - User Preferences.
2. Click Basics
3. Under Additional Options, select "Retain View column sorting."
To mark documents as already read when you preview them
1. Choose File - Preferences - User Preferences.
2. Under Additional options, select "Mark documents read when opened in preview pane."