Multiple accounting hosts for one realm?

Hello Freeradius-users! While configuring freeradius 1.0.5 on Solaris 9 I began to look at setting up different accounting hosts for users depending on which realm users orginated from. That worked fine. However; I have now come across a situation where it might be valuable to send the same accounting information to multiple accounting hosts. I am hoping to do this by changing the accthost variable in etc/raddb/proxy.conf. Does anyone on the list know if (a) this is possible, and if it is possible (b) how to do it - i.e can I add further hosts in a list to the existing variable or do I need to use some other method? Thanks! /jre