Applying modifications to all instances of a repeating Entry you are viewing

Dates for the Entry are listed at the bottom of the dialog box. By default, any changes you make to the Entry will apply only to the dates selected in the list box. Click Apply to all to apply changes to every instance of the Entry.
 

See also:

Creating or editing a Meeting

Creating or editing a Daily Note or Day Event

Viewing a Meeting

Viewing a Daily Note or Day Event