On my event I have the following sessions :

Session 1 : 9 - 10am

Session 2 : 12 - 1.30pm

Session 3 / 4 / 5 : 2 - 5pm

I would like the user to be able to select:

Session 1

AND / OR

Session 2

AND/OR

ONLY 1 of Session 3 / 4 / 5 because they happen at the same time.

When I set the session component on the form registration, I can select them all.