Multiple Versions on one Installationserver

Hello, I'm new to autoyast and it's configurationsystem. I wondered if/how it is possible to install different Version e.g. SLES 9 SuSE 9.0 and 9.1 Pro from 1 Installationserver. How can I bulid a class in which I can Specfy thefor example the Path of the Version I'd like to install. I couldn't find anything about that in the Documentation. Thanks for your help. -- Best regards Brigitte Warnecke-Schaer