Stupido! I just sent a long post you can ignore! [Can we delete it?]

Yes, you have to CLICK on the Group node ICON! I was so focused on that darn check box I did not hear you -- I did not move to mouse over far enough to get the clue on what was going on ! I was thinking the click event with the check did something and it does NOT !

If I can't figure this UI then what are my users going to think? Three suggestions we need to make the tree view design patern siminlar across DNN: 1) take a look at the file manage tree -- I understood how to operate that, 2) add alt text something like "click here to expand", and 3) change the core client api js as you describe to have the option to remove the checkbox on group nodes.

Again, by apologies....