I will be showing some code here that demonstrates the ability to draw on an outside Java class container, which holds hundreds of indexed objects indexed via an iterator, populate a Tree with that data model, and allow viewing of the object contents by clicking on a TreeCell. So, the overarching SplitFrame fx file contains the following: public class MySelectModel { public attribute selectedNode: TreeCell; } Why am I doing this? Why don't I act off of some trigger from the Tree class itself? So what does throw an event trigger when a TreeCell is selected? The Tree Cell itself!