Create a timetable (in Excel) with all available classes from the subjects chosen from Fénix IST
Edit the dictionary subjects, choosing the subjects you want to take. Change the initials according to the subject and change the url to the right subject "Turnos" page. If you want, you can also change the colors
It will create a excel file with 2 sheets, the first one with all type of classes and the second one only with "Teóricas"
Check that the file is not open