SOPP461: I cannot possibly play those exercises as indicated with toe and heel

This question was sent by Guinn, and Guinn writes: Good Morning, I purchased 10 Day Organ Pedal Playing Challenge last night. I have a flat Baroque 27 note pedal board, normal for Baroque which is what I play. I cannot possibly play those exercises as indicated with toe and heel. Most of them have the incorrect clef marking. Treble clef is marked, this must be an editorial mistake. What must I do? How do you direct students with a normal Baroque pedal board? Thank you, Guinn