Ah, I see what you're getting at now, Darth Wagner. I take it you mean that if the lower-down 'positioning' of the long 'extended support arm' currently attached to the large 'Vent Pod' structure in the movie was left as it is, that Luke could have reached the end of it (and thus reached the 'Vent Pod' itself), BUT THEN travelled 'upwards' in some way....possibly through a more vertical-angled 'tunnel', or shaft, OR lift, which then eventually connects to, or brings him to the FINAL 'access tunnel' - that he eventually pops out of beside the window.

(This means the 'brief jump ahead' that I mentioned, jumps ahead a lot further than I thought....)

AND I see now that this means that there could ALSO be a case made now, to account plausibly for how he is actually now beside the window shown in the 'Vent Pod' exteriors, which is the opposite of the one I thought it was after all....

I dunno, it seems a bit of a stretch for the flow of the action shown, but I understand that my alternatives mean a few tricky issues for Adywan to attend to.

By the way, in the absence of screenshot examples, check out the 'Vent Pod' exterior shots by looking at them in a 'mirror', to get an idea of the way I think they should ideally have looked from the beginning.