Apart from one brand specific to it coming up I cannot find anything useful online, damn the death of search engines. I ordered normal roller blinds because I haven’t found any advertised as from bottom up, but I’d like to mount them to start from the bottom. Anyone knows if this will work?

Why? I have windows that are literally what is normally put in as balcony doors. I need to cover the bottom part for privacy because I live in what is essentially a terrarium. But I love sun and the sight of trees so I’d like to leave the top part uncovered without mounting the blinds 2/3rd into the window.

I will greatly appreciate help. Please, no videos, I’m nearly out of Internet. :(