The Diary window allows recording of future appointments, with the facility for popup reminders at specified intervals beforehand if required.
Diary Events are assigned Labels (such as Business, Private, Phone Call) each of which is shown with a characteristic background colour for easy identification. Labels may be added and amended from Configuration Edit Diary Labels For more details, see the graphic below.
The setting under General Preferences can be used to start MailCOPA with the diary open.
The Diary can be synchronised with your Google Calendar - see the Settings tab below.
These can be configured from the menu: Configuration Edit Diary Labels
NOTE that Labels cannot be deleted once created, as this would cause so many problems with events already using a label. If necessary, modify an existing label.