[Orgmode] How to limit mobileorg agendas to only a subset of my custom agendas?

[Christopher Long]

Dear All,

  Is there a way to limit the custom agendas synced with mobile org?
I didn't see anything on that in previous posts.
  I have a set of custom agendas defined in my .emacs file.  They don't 
exist as individual files (anywhere that I know about) until I do a push
command.   I'd really just like ONE of them to sync.  At the moment, 
they all sync slowing things down a lot.

Thanks,

Stoph