Adaptive Sweep

[Sanam]

Hello. Good time
I have problems to make such a swept surface. I can't select the green curve as a guide curve ,and can't obtain blue sections to make adaptive surface. Please explain which curve is the guide curve ,and which curve is the sketch ,and how can I make the second section?
based on this page training:
http://catiadoc.free.fr/online/sdgug_C2/sdgugbt0213.htm

 

[MrCATIA]

Based on the pictures in the documentation (which are not very clear):

- The Guiding Curve is the green curve, (sketch.5 if you download the part file from the lesson)

- The Spine is the blue curve (the shape of the Guide Curve is too complex to use as the spine)

- The Reference Surface is the blue surface (I'm not sure what this does)

- the Sketch (profile) is the black "upside-down L" shape (sketch.4)