With Studyo, section schedules will most often map to a pair of cycle day number and period label. You first define all your bell times in the CALENDAR section, then you indicate in which cycle days and period labels each section should appear.
You can view and edit those section schedules from SECTIONS (in management mode), selecting "Edit schedules" on the section's menu.
Each occurrence of that class appears on one line, where you can set the following fields:
Term: One of the terms defined under CALENDAR.
Day: The choice of a cycle day number, a day of the week or a specific date.
Time: The choice of a period label with an optional schedule tag, or a specific start and end time. In the first case, the optional schedule tag allows you to narrow your period label to match only a subset of your bell times, each having an optional schedule tag. In the second case, you are creating a new period just for that occurrence. To allow tasks to be created in that period, you should specify a "Displayed tag" for that period.
Room: The name of the room where in takes place.
Teachers: The list of teachers of this occurrence. You can pick multiple teachers.
To add a new occurrence, use the "+" button on the bottom-right of that list.
As you can see, you can mix normal cycle day occurrences with special occurrences at specific dates:
