Alternate lessons / Weeks A-B

Alternate lessons are lessons that do not recur every week, but alternate with other lessons on the same slot. The classic case: one lesson in week A, another in week B, on the same day at the same time.

Configuring the cycle

The alternation is configured in Save. Three options:

• Disabled — no alternation.
• Letters — week A, B (and C, D… if you add more).
• Numbers — week 1, 2 (and 3, 4… if you extend).

Omniscol does not impose a 2-week cycle — you can alternate over 3, 4 or more weeks.

Creating an alternate lesson

When configuring the hours distribution:

1. Hover over the lesson to alternate. A icon appears at the top right; click it.
2. A new free slot is added for the alternate week.
3. Create the lesson corresponding to this new slot.
4. Position it with its pin button , then click the desired day/time slot among the colored placeholders.

You can repeat this to add more alternate weeks to the same course.

Combining with other complexities

An alternate lesson can be:

• simple — pure alternation between two lessons,
• concatenated — a lesson that alternates and is also a double slot,
• associated — combined with associated lessons (group swap: A in biology then physics, B in physics then biology). The group swap is a complexity distinct from the A/B alternation, but it can be combined with it.

Offset caused by holidays

If you were in week A just before the holidays and want to resume in week B afterwards, create a virtual offset on the timeline of the year's weeks (see school year). Without an offset, the alternation simply resumes its normal cycle.