In our Hebrew courses, the students get the course grade for all academic purposes, but they also have the Final-Exam grade which indicates their Hebrew-competency.
Our Institution's condition for advancing to the next level is a certain minimal grade in Final-Exam of the current level.
We tried solving it with a custom student field, but even with that, there are no pre-req rules that refer to it.
If we could refer to a grade in a different course's assignment or assignment group - that would be wonderful.