The substitution list for teachers (Print- Leh) partly contains different elements than the students' list. The layout is different too:

Sort
The teachers' list is sorted by substitutes whereas the students' list is sorted by classes.
Open <Grid Adjustment>
in the substitution view . The entries in the column "Sort" define by which criteria the list is sorted. The teachers' list is first sorted by substitutes and then by period. If you choose to display a heading, it will be the element which receives the number 1 in the column "Sort".

You find further information regarding the printout of substitution lists in chapter Printout of substitution lists.