Step 1: Google mcmaster master timetable
Step 2: Go here http://www.timetablegenerato r.com/
Step 3: Write out all your courses, seperated by term
Step 4: Search up all your classes by term then write down all the cores, tutorials, labs and their available times.
Step 5: Plug them into the timetable generator to simulate what you have.
Step 6: When you have something you like, go to solar and MODIFY