HelloKier Ancona and welcome to the Canvas Community! I do know you are able to delete a assignment group, however, I'm unsure sure of the "categorized" part. I did find some resourceful docs, which you may find helpful in response in your question:
Kier AnconaWelcome to the Canvas Community! It sounds like you're syncing the assignment groups in Canvas with the assignment categories you've set up in your SIS; is that right? Priscilla has given you great resources for managing the Assignments Index page. You'll want to be sure that you have moved any assignments you want to keep out of the assignment group before deleting it, and double-check that the remaining groups correspond exactly to the categories you have set up in the SIS.
HelloKier Ancona and welcome to the Canvas Community! I do know you are able to delete a assignment group, however, I'm unsure sure of the "categorized" part. I did find some resourceful docs, which you may find helpful in response in your question:
1.) https://community.canvaslms.com/message/93396-re-how-to-delete-an-assignment-group?commentID=93396#comment-93396
2.)How to organize quizzes into categories? (ie Lecture Quizzes vs Lab Quizzes)
3.)How do I use the Assignments Index Page?
4.)How do I add an assignment group in a course?
5.) How do I add or edit details in an assignment?
6.)How do I delete an assignment?
I really hope this helps. Thanks!