I'm new here. I've used LaTeX for same of my articles and until now I was able to solve my problems on my own. But now I'm stuck.

I've to split my bibliography in reliable and non-reliable sources. The reliable sources should be cited with the alphabetic style inline. The non-reliable should be cited as footnote with verbose-note style.
Both should also be printed in their own bibliography.

I've used this answere: [Biblatex: Two bibliographies with different styles and sortings](https://tex.stackexchange.com/questions/299064/biblatex-two-bibliographies-with-different-styles-and-sortings)
I manged to split the bibliography and use the given different styles.

I'm stuck on how to tell the scondary bibliography to use verbose-note for my footcite.

I hope someone can help me!

Many Thanks in advance.
(My MWE is the answere of the given link)