Hi,
Through the Hierarchical Menu from SCN Community Package, I have been able to provide this option.
I thought people would migrate quickly to 1.6, and didn't take the time to create it for 1.5.
That being said, my first working prototype was on 1.5 and it worked fine.
If you want, I could improve the SCN Com. Package 2.0 (for 1.5) with it. It would take a couple of days though.
If you are interested, and knows how to write SDK extension, you could look at my code and adapt it to 1.5.
Here's the blog entry for 1.6.
Let me know.