Step 1 — General settings

On the General tab, you set the global parameters that structure the timetable.

The pre-filled values come from the school settings, which you can also adjust beforehand.

Fields to fill in

1. Label — the name of the timetable ("Timetable 2025-2026", "S1 2025"…). Visible everywhere. Editable.
2. Description — free text, useful when you have several timetables.
3. Display mode — by default, one row per time slot with the times on the left. You can choose a numbered-period style, common in English-speaking schools, or a calendar display on round hours.
4. Base lesson duration — the reference duration of a time slot, possibly including the gap between lessons. If your lessons last 55 min with a 5-min gap, enter 60 min. If your regular lessons last 1.5 hours, enter 90 min.
5. Lesson unit division — into how many sub-parts can the base duration be cut? To be able to create lessons of 1 hour, 1.5 hours or 2 hours with a base duration of 60 min, choose 1/2. To go down to the quarter-hour, choose 1/4.
   • Tip: do not go finer than necessary. The finer the division, the longer the solver computation.
6. Working days — tick the days with lessons. By default Monday to Friday (unless the country settings differ — Arab countries, Israel…).
7. For cyclic timetables — the number of days in the cycle.
8. For calendar timetables — start and end dates (editable later) and optionally date windows.

Saving

The Save button at the bottom saves the configuration.

What next

Once these parameters are validated, move on to the next step: Sites, rooms, resources.

Tip. If you are migrating from another system or simply want to try Omniscol quickly, for large mass creations of lessons (hundreds at once), the Mass import via spreadsheet is faster than screen-by-screen entry. However, the more structural data you enter beforehand, the better the import.