Can the intergrate ST client be set up by a policy (maybe during install)

We have been using a policy from Notes R7 and up to set up Sametime for our users. There is only one Sametime server, but we use MUX’es for every other country than DK. This has been set up by a Desktop Policy, but that only works for the Notes R8 Basic client. Can the same thing be done in a ST policy (dosen’t look that way—I’ve read in a Redbook, that you should clear the ST field in the Location doc, when running Notes R8 Std!!!).Do the users have to set this up manuel? Or do I have to customize a XML config file for every country