I think this would be a great feature and I also agree to Christophers point.
Some thoughts from the top of my head:
I think the behavior should be “baked into” the current node create dialog, so that the wizard basically becomes multi-step (whether we’ll ever need more than 2 steps is another question).
Maybe we can improve the behavior of the wizard at the same time:
If you are only allowed to create nodes of a single type at a certain location (e.g. due to ACL- or node-constraints) the wizard should be skipped (or display the 1st “options dialog” if one is configured)…
That would be neat!
EDIT: I called the InsertNodePanel “node creation wizard” which was misleading 