Substitution of long lessons (double, triple, ..)
Longer lessons (double, triple, ...) are displayed in Substitution as one row with small plus sign "+" at the beginning.
This view is convenient for cases, if you wish to select just one cover teacher for the entire long lesson. Simply open substitution dialog for this lesson with double click on the row and set necessary changes in a standard way.
In case, you need to separate long lesson into two or more single lessons, just click on a plus sign "+" at the beginning. Lesson will be divided into more rows and each represent one single lessons. Then you can select different cover teacher for every of these lessons (or set different subjects, classrooms, notes...).