To change the name of the Affiliation Group navigate to:
  1. Core
  2. Settings
  3. Labels and Text
  4. Custom Labels
  5. Scroll down and under Alumni Groups and Roles beneath that, you can change it to Alumni/AlumnaUser-added image
  6. You will see a note there under Groups that it will update the affiliation on Giving forms.
Note: You cannot add a Affiliation Type just change the Name of it.