With this feature, you can add institutions, catalogs (data sets), departments, and/or courses to your TES data set that don’t actually exist in TES currently. For example, if you see a course on a student's transcript that you can't find in an official catalog for the institution, you can add it! If you want to define equivalencies to an institution that doesn't appear in TES, you can do that, too!
For more information regarding this feature see: User-Added Send Courses
Also the feature formerly known as User-Added Courses is now being referred to as User Added Home Courses.