RSP teacher observing multiple student throughout the school

[BrianBriggs]

I have seen a few posts but could not find the exact answer. We have an RSP teacher at a High School who would like to observe the students he works with from other teachers' courses. I was hoping the teacher would not have to be set up as an observer to all the teacher accounts and courses to filter through all their classes. Is there a streamlined way? Can the student he works with be assigned to him?

Thank you in advance.