On the Configure Classes page, you are also able to enter composite/multi-age classes.

Class Creator will attempt to balance the classes according to your student numbers and give you an approximate number of student per class and the composition.

If you wish to change the composition of students you can easily edit the classes user our Drag & Drop feature.

Below is an example:

Prep - 4 Classes - 19 Students
Grade 1/2 - 7 Classes - 23 students (1s= 12, 2s= 11)
Grade 3/4 - 8 Classes - 24 students (3s= 14, 4s= 10)
Grade 5/6 - 7 Classes - 24 students (1s= 13, 2s= 11)