Workout "method" and "C.A." missing

Hello all,

I use the workout Plan “build me Up” to become stronger.
I can See the workouts “method” and “C.A.” within the Plan and can ride it.
But i would Like to Copy both and modify them For my own.
For that reason i was looking for those two workout in the list of all workouts.
I can Not find them, the Others are there and available.

Ist there any reason?

Best regards,
Tobias