\version "2.11.41"
\layout {
  \context { \Score
    \override MultiMeasureRest #'expand-limit = #1
    skipBars = ##t
  } 
  \context { \RhythmicStaff
    % This messes up real multi-measure staves!
    \override MultiMeasureRest #'extra-offset = #'(0.0 . -1.0)
  }    
}
<<
\context RhythmicStaff = "RhSt" <<
  { R1 | r2 g' | R1*15 }
>>
\context Staff = "St" <<
  { R1 | r2 g' | R1*15 }
>>
>>