Order of contexts over staves

[Phil Holmes]

I'm setting some music with temporary staves, and ensuring the the 
temporary staff is above the main staff using 

\new Staff \with { alignAboveContext = #"label"}

I'm also using a dynamics context, which is created with 

\new Dynamics  \with { alignAboveContext = "label" } 

The problem is that the dynamics appear above the ossia stave, rather than 
the main one.  Is there any way to change the order they appear on, on the 
page?

Thanks.