Ah yes, another LabVIEW "Holy Grail".
I think you may be making a huge assumption that this wizard was created in LabVIEW. NI doesn't always use LabVIEW for these things.
To see an example of what I believe is the best you can do with LabVIEW's standard tools to create a "tree view" check out the File Manager, located in the "Tools" menu under "VI Library Manager". This is a shining example of the best that most people can do using a List Control and the available symbols.
Don't get me wrong, LabVIEW is capable of creating a true list view; however; you don't have the patience to write the code, as I would never try that.
Perhaps someone will (or already has) created one, and has made this available. If you find one, let us all know, because we a
re all seeking this Holy Grail too...
PS: If I had to make a bet, I would guess that this wizard was either created using Visual C++, or perhaps even Visual Basic. Just don't tell anyone at NI I said the VB word...