You can change the name of a category from the app contents screen.

Category names can be up to 60 characters long and must be unique within an app. 

To rename a category:

  1. Open the app that contains the category you want to rename.
  2. On the app contents screen, hover your cursor over the category to rename, and click the pencil icon.
  3. Enter a new name for the category.
  4. Select the checkmark to confirm, or press Enter.