External scripts thresholds via hobbit-clients.cfg

I have looked thru the mail archive and don't think this has been asked?
I think the answer is no but will ask just to make sure...
 
I have a common external script on a few hundred systems and would like
to be able to control the thresholds via the hobbit-clients.cfg file as
I do with the out-of-the-box tests. I don't want to have to change the
thresholds by editing each system individually. Is this possible?
 
Thanks 
 
Bill Richardson