Making space for markup with cross-staff beams

[Phil Holmes]

As something of an exercise, I'm setting the Vaughan Williams song "let 
beauty awake" in Lily.  It's got lots of staff crossing.  My current problem 
is getting the stems and beams to avoid some markup.  The attached image 
illustrates the problem.  I know I could move all the staves apart more to 
provide some room, but I don't want to do that because it would mess up all 
the other staves.  Is there a way of either just moving the piano staves on 
this system a bit further apart, or alternatively, some other way of making 
the cross staff furniture avoid the markup?

Thanks.

--
Phil Holmes

BeautyAdj.png
Description: PNG image