You can read about the compact schedule in EnergyPlus 9.2- Input Output Reference.

Missing fields are when there are two fields in a row separated by comma. The text after the exclamation mark is just a remark.

I believe that you can safely change the temperatures in the Compact Schedules as your cited text, up here, states that the temperatures are non-variable. Anyway, if you could post a link to your IDF file I could make sure that it is safe.