[Users] Features in Layer Tree?

[Tom Hansen]

Very simple question, that I cannot seem to find the answer to anywhere:

Is there a supported method to include individual features in a layer tree?

I am reading in layers from individual KML files and have each KML 
represented in a layer tree.  It works perfectly.  However, I would like 
to add the ability to "open" the layer on the tree and see the 
individual features, and be able to turn them on/off with checkboxes, 
just like at the layer level.  Is there already a supported way to do 
this?  Or do I need to "roll my own" as it were?

Thank you!

-- 
Tom Hansen
Senior Information Processing Consultant
UWM Great Lakes WATER Institute
www.glwi.uwm.edu
tomh at uwm.edu