For any other newbie looking for the answer; myViewStack.selectedChild = Container(myViewStack.getChildByName(treeMenu.itemToLabel(treeMenu.selectedItem)));
Modify to your usage.
For any other newbie looking for the answer; myViewStack.selectedChild = Container(myViewStack.getChildByName(treeMenu.itemToLabel(treeMenu.selectedItem)));
Modify to your usage.