Course adding through the responsible department (online)
http://www1.reg.cmu.ac.th/department_add

Request for section change (For submission to the department offering the class)
https://www.reg.cmu.ac.th/webreg/reg-files/change-sec-faculty-en.pdf?fbclid=IwAR1NU7T2672hVtpW9LLqAxxRm_CiHWQySfmpmUrIthnnwbRO-iivzylSbNQ