JBT currently has three preference page categories:

1. Drools
2. JBoss jBPM
3. JBoss Tools

The first two should be listed as subsections of the JBoss Tools category. Alternatively, I suggest that the top level category should just be JBoss:

• JBoss
  • Drools
  • jBPM

Also, the JBoss Tools and JBoss jBPM top level pages in each of these categories do not expose preferences, but rather the default buttons or simply a label ("JBoss Tools"). These top level pages should show overall JBT preferences. See the Java preferences or other examples in the Eclipse platform for this idea. (Also note that the DTP 1.6.x way of doing this is wrong... )