You can move an appointment from one day to another within the Weekly Appointments window by dragging the appointment and dropping it onto the required day. The appointment start time will remain unchanged when moved from one day to another even if there is an existing appointment at the same time in the destination day.
You can change an appointment's description by selecting the appointment and pressing the F2 function key. A caret will appear in the appointment description, allowing you to type in a modified description. Press Enter to save your changes.
To modify other appointment details such as the start date, start time, duration, category information and notes, bring up the Appointment property sheet by double clicking the left mouse button on the appointment.
You can delete an appointment from the window by selecting the relevant appointment and pressing the Delete key on the keyboard.