clarification on use of groups

[Lev Lvovsky]

Hello - I'm new to the list, and a newb to Cfengine, so go easy ;)

In setting up file copies in cfservd.conf, is there any way to 
incorporate groups?  The only way that I've been successful with 
copying files, is to specify something like:

admit:
  <some file> dest=<some dest> server.domain.com

I realize that I can use wildcards for the server name, but it would 
seem that the use of groups would be much easier to work with - 
allowing only groups of servers to get the files specified.  I might be 
missing some basic concepts here.

Also, I'm curious about the "domain" setting in the control section of 
the cfservd, how does cfservd use this variable?  I still need to 
specify a FQDN in the admit section.  Again,  I might be missing 
something here.

thanks for any advice!
-lev