I don't know if there is a better title, but this is the one that's most verbose (a less verbose one would have been "how to make the tabs overflow to the left side" or something along those lines)
This is related to another question I asked, here. The goal is to have the tabs not taking "multiple lines" (when there is a lot of tabs), as can be seen on this image and instead be on the same line.
Is there a way to do this in Elisp?