[jboss-dev-forums] Extending jBPM Visual Designer

My appologies ahead of time if I am sending this to the wrong mailing list or if this question has been asked before. I am wondering if someone knows if it is possible to extend the jBPM Visual Designer with a custom set of Nodes. The current jBPM configuration is not enough for our purposes and while we can extend the Node class we have not found any documentation on how to reflect custom nodes in the graphical UI of jBPM designer. Please help. Secondly, has anyone else encountered the problem that the jBPM Visual Designer guide does not correspond to the latest version of the eclipse plugin? The current plugin does not even create a websomething.sardirectory like the guide states. The diagrams seem to be out of date as well. Thanks.