Working with Markups > Annotations > Callouts > To Rename an Item Tag
  
To Rename an Item Tag
1. In an open figure with callouts, do one of the following operations:
In the Item List tab of the lower data panel, right-click the item to modify, and then select Rename.
Click Item List > Rename.
The Rename Item dialog box opens.
2. Next to Item Tag, type a new name for the item, and then click OK. The item’s tag is renamed.