You can edit the title and body of a saved reply.

Editing a saved reply

  1. In the upper-right corner of any page, click your profile photo, then click Settings. Settings icon in the user bar
  2. In the left sidebar, click Saved replies. Saved replies tab

  3. Under "Saved replies", next to the saved reply you want to edit, click .
    Edit a saved reply

  4. Under "Edit saved reply", you can edit the title and the content of the saved reply. Edit title and content
  5. Click Update saved reply. Update saved reply

Further reading