Henk, i am facing the exact same problems as you are describing. I attended this years Devoxx conference and actually talked to a JBoss developer about this same problem. Let me just say that some people within the JBoss team also finds this to be a huge problem. A "promise" was made that this feature might re-appear in 7.1. Maybe. Maybe not.
Do you know if there is a JIRA on this issue?