If I have a tree of immutable items (`class Foo`) ...

# tornadofx

[sbyrne]

If I have a tree of immutable items (class Foo) displayed in a TableTreeView, and I have a Label (outside of the TableTreeView) that should display the result of Foo::getSomething() (which returns String) of the selected tree item (and update when the selection changes). Is there a way to bind that to an observable? Or do I have to write a listener to do the update?