[BPM] Multiple receiving steps

Hey,

found this demo for multiple receive steps.

http://help.sap.com/saphelp_nw04s/helpdata/en/cb/15163ff8519a06e10000000a114084/content.htm

I tried to create a BPM with multiple receive steps, where one step could start

the process. The example needs to receive ALL steps before it starts.

How to define a BPM where ANY receive step can start the BPM?

Would like to receive different Message-Types and transform them to

a generic structure.

thanks

chris