How to format footnotes to be tab-separated rather than line-separated?

LO formats footnotes to be separated in a way that there’s one footnote per line. This leaves plenty of whitespace on a page when the footnotes are extremely brief but numerous. I’d like to separate footnotes by tabs (so that we can have 2, 3, or 4 footnotes per line), I can’t seem to find a way to do that on LO.

Any and all help appreciated.

It is not possible to obtain this effect on Writer, sorry. You can do it on LaTeX, of course, but not on Writer.