Stadion: Adapting a support pillar/cantilever in height along upper line

Hello together,

I am rebuilding a stadion and was firstly wondering how to adapt the two vertical support pillars, of which there are about 120 in total., onto the marked upper green line. And secondly how to adapt the horizontal cantilever, which is held between the two vertical support pillars, along the upper green line as well.

Enclosed you will find the gh-file as well.

Thanks & BR

grafik (188.9 KB)