FlyOut Custom Hotkeyable Tree

[thenightfather]

Have the FlyOut mods, FlyOut Custom and FlyOut Bindings, and I want to make my own tree that behaves like the Blizzard flyouts such as Teleport/Portal. I'm able to make my own tree, not a big deal. But I'm stuck on making my custom tree hotkeyable. Is it even possible? Here is a picture of the Teleport spell tree working just fine, attached to a keybind. My mount flyout tree does not have functionality at all even though the parent is hotkeyed. It simply does not behave like the Blizzard teleport spell tree.

How do I go about making my own flyout tree that behaves just like the Blizzard one? TIA

pic: notice above tree (the custom one I made) has no numbers as the Blizzard teleport tree does