Multiple items tagging (batch tagging) – if you select 2 or more appointment/task items, you could make use of the ‘Group Tagging’ button (available in the Team TimeSheet ribbon toolbar) to tag the same project or activity or billable hours or custom field value to all the selected appointment/task items in one go.
Step 1. Go to Outlook Calendar.
Step 2. Create some empty appointments or task.
Step 3. Select the appointments/tasks and Click ‘Group Tagging’.
Step 4. And from the project fields, you can then set the common value for all the selected appointment/task items. 