In the JBoss WS User Guide

2.2. Configure JBoss Web Service facet settings
If you have already created a new Dynamic Web project, the next step is to add JBoss Web Service facet to the project: ....

No explanation on how to get this "Modify Facet Projects" pop-up for "JBossWS Facets". After I spent an eternity with much help from "Feng Qian (Grid)" I discovered the following.

If you
a) right click on the Dynamic Web Project
b) Properties
c) Project Facets (so far I always knew how to get to)
d) Now
1. If the "JBoss Web Services" project facet is not selected then one you select it at the bottom left of the "Project Facets" an error link appears "Further Configuration Required" which one clicked it brings up the pop-up mentioned in section 2.2 of the configuration

The issues here are
1. Nowhere that I have seen it explains how to get this
2. Also, once you have chosen the JBossWS facet it doesn't explain that to get again this link you have to de-select the "JBoss Web Services" facet, "press apply" and then "re-select" "JBoss Web Services"
3. Finally, I am not sure if it is due to my O/S (RHEL 5.2 CSB) but I don't see the "project facets" the "apply/revert" and the error link in one screen as for some reason "scroll bars" are provided to navigate around the Project Facets screen of eclipse although they should all fit fine in one screen