@ Anna. thanks yes that is what I was working from until I realised that the original rog of Mr W, which was in english, is not in the published files. The most original document we have is the PJ portuguese translation, which is in the files. The english we read tertiary internet translation, not the original, so I provide for the first time an accurate translation in this post.
I went back to the most original document of this rog that we have, the portuguese translation, which says:
"... julgo tê-la visto quando primeiro iniciei o meu passeio. Ela estava parada na rua em frente do apartamento de um dos elementos do grupo, quando eu passei para baixo a saída do meu apartamento. Não sei se era o seu proprio apartamento ou não. Recordo-me que usava um vestuário de cor purpura"
and my accurate translation is
"... I think I saw her when I first began my walk. She was standing in the street in front of the apartment of one of the group members, as I went down to the exit of my apartment. I do not know if it was her own apartment or not. I remember that she was wearing a purple colored clothing"
Therefore at the moment Mr W saw this woman, IMO he was just leaving his apartment, and looking out from the walkway on the 4th floor of block 4, and saw a woman wearing something purple, standing in the street Rua Dr Agosthina Da Silva, and level with block 5.
So when he sees this woman on the street, he is on the 4th floor, at a great distance, 30 metres at least, very probably more. IMO he saw the same woman that Mrs M saw, not JT.