If you wish to edit a data source in a document, you can make modifications when you select the data sources or -when you complete the merge -when you preview your letters -when you insert the merge fields -when you being the merge again

Which best compares appointments and events in outlook 2010appointments have a subject man, and events do notappointments have a specific date or range of dates, and events do notappointments have a start and end time of day, and events do notappointments have a location option, and events do not