...
DCU: https://isacadweb.nexus.uwaterloo.ca/DCU/
Online Cycle: https://uwaterloo.ca/registrar-resources/scheduling-and-examinations/term-scheduling-cycle-tasks
Change Request Form: https://uwaterloo.ca/registrar-resources/scheduling-and-examinations/course-change-request-form
Undergrad Schedule of Classes: https://classes.uwaterloo.ca//under.html
...
Campus: https://iscampweb.nexus.uwaterloo.ca/scheduling
Who to contact:
Grad:
Topics, reserves, course drop/adds – gscheduling@uwaterloo.ca
Undergrad:
Topics, reserves – sarecord@uwaterloo.ca
...