Auto-loading of Instructor-field

Good day all

Trust you are well.

Last year I assisted a company with an Education installation on V12

When using the Course scheduling tool, I would like to have the Instructor field auto-populated.
I am looking around in the code under …/education/Course_scheduling_tool/.
The java-script file and the python file but I cannot see the trigger-code for “Student group” that
should trigger the auto-population of fields once you enter “Student Group”.

I did a grep -r on linux to see if there is other .JS files that may be coming into play, but nothing.

Will appreciate some assistance.