Footers outside the type area

[Hannes Kuhnert]

Hello,

by default footers are part of the regular type area, but I’d like to have 
them placed below.

Especially the notes should fill the same area on every page, regardless if 
there is a footer or not. “foot-separation“ and the footer itself would then 
lie within “bottom-margin“. This would correspond to the class option 
“footexclude” in LaTeX, which is the default setting there.

How can something like that be achieved in LilyPond?

TIA

Hannes