can compressibility be set to zero?

[Kieren MacMillan]

[Lilypond v2.17.13]


Hello all!

Is there a way to guarantee that the space between two contexts cannot be 
compressed beyond #'minimum-distance?

I have a book where there's still compressible space between socres, and 
between staves within those scores, but I don't want my ScoreMarks context 
(metronome markings, etc.) to be pushed into collisions with the top Staff of 
my score. If possible, I'd still like it to have [a little] stretchability — 
but I'd happily give that up [and simply have a fixed distance] if I could keep 
it from compressing below the given #'minimum-distance.

Thanks,
Kieren.