By "multi-selection of nodes in a tree", do you mean checkboxes next to each node in the tree?
Thanks for the response...
What I mean is true support for multi selections.
People are used to being able to do CTRL-click or SHIFT-click a bunch of tree nodes at once, as you can do with Swing or as you see in Windows Explorer. Basically the tree component itself would have built-in support for having multiple nodes selected, not just the last one that was clicked.
I am currently following the other discussion regarding checkboxes in the tree, as that appears to be an alternate solution. It's not ideal, especially if you want to select a large set of treenodes.