Compile: modifying appearance of footnotes and footnote marker

I’m using a lot of inspector footnotes, which work as expected and are a great feature. However, I am struggling with three things when doing Compile to PDF. I know these must be basics but after spending hours trying to find the solution by myself I must admit I need some help.

  1. In the main text, the superscript footnote marker is far too small. How can I make the superscript footnote marker bigger (while keeping it superscript)?

  2. In the footnotes, how can I change the superscript footnote marker into a non-superscript one, followed by an en space?

  3. In the footnotes, how can I change the line spacing?

Any help is greatly appreciated.