As a teacher, can I add existing Scratch accounts to my class?

Links to Relevant Wiki Articles(s):

• https://en.scratch-wiki.info/wiki/Student_and_Teacher_Accounts 

Links to Relevant Scratch Resources:

• https://resources.scratch.mit.edu/www/guides/en/scratch-teacher-accounts-guide.pdf 

Teacher Accounts can only create new student accounts. It is not currently possible to add existing Scratch accounts to a classroom.

As a workaround, you may want to consider following existing Scratchers and have them follow you and your students. You can also invite existing users to curate your class studios. This way, you and your students (student accounts as well as existing Scratch accounts) can be aware of each others' activity on the site.