Use the Duplicates dialog box to enter a unique activity ID when renumbering or pasting an activity.
Duplicate Activity ID: Lists the activity ID that when pasted into or renumbered in the existing project would become a duplicate ID.
Activity Name: Lists the name of the activity to be renumbered.
New Activity ID: Type a different activity ID than that listed in Duplicate Activity ID field. If the new ID you type is also a duplicate, you are again prompted to type a unique ID.
Cancel: When pasting activities, cancels the action and does not paste the activities listed in the dialog box. When renumbering activities, does not renumber any activity IDs, including activity IDs that are not duplicates.