Thank you, Pascal for your answer.
I have got a rope wall at home and I sometimes practice with it after Geeta's book "Yoga: A gem for women". The reason I asked the question was that in the book variation no. 1 is Bhujangasana (with feets away from the wall) and in "Props & Ailments" by Bobby Clennell the First rope is Bhujangasana & Urdhva-Mukha-Paschimottanasana I (which is variation no. 2 in Geeta's book). So I am still not absolutely clear which is rope 1 and which is rope 2 ;-)). In "Props & Ailments" the Second Rope is Purvottanasana which is variation 3 in Geeta's book. So I think I will stick with Geeta's book in terms of practice ;-)). So thanks again for the advice because only after I have read your post I looked it up once again.