Advanced Editing > To Rename a Part
  
To Rename a Part
You can only set one new name at a time. If you select two or more parts, they will be renamed with the same new name.
1. Click Structure > Edit Structure. The Structure Edit tab opens.
2. Select one or more parts to rename, and then click Advanced Editing. A message to warn you that you can lose unsaved changes appears. Select Save or Discard to proceed.
3. Click Rename. The Rename Part(s) dialog box opens.
4. Type a new name for the part and click OK. The part is renamed.