How Do I Change Intervals for my watering schedules?

I need to change days but I can’t convert my two schedules to specific days rather than currently, every day. Starting from scratch and building New schedules is a big waste of time. I would need to documents all settings and times and re-enter. I just need to change days of watering. Please help.

You can not convert fixed day watering schedules to interval type schedules, and vice versa.