Change of timetable and adding new classes

Hi I had a timetable change can't work out how to change a class to a different day also need to add new classes

Hello madformusic,
From the schedule view, edit the first week where you had that timetable change.
Tap and hold on a class > Edit to change a particular class or tap and hold > Add to add new classes.
Once you have a full week configured you will be able to copy that week to the rest of the term with the steps explained here