These swatches are different types of increases. Increase stitches should have the same tension on the left and right. These were fairly easy for me, I've used these types of increases in the past on various projects.
This portion of the program includes placing increases evenly, mirrored increases, shaping and of course ... following instructions as written.
Swatch 4: Bar Increase
Swatch 5: Make 1 Increase
Swatch 6: Lifted Increase