I wasn't sure if this should go in this suggestion forum or the normal one since it only... sort of touches on scripting...?

I think it'd be great to be able to let us choose the depth of Custom UIs.

The reason I would want to be able to do this (besides the obvious advantages with dealing with conflicts of UIs) is so it could allow us to create Custom UIs that appear behind certain elements of the normal TTS UI.

For example, I would love to be able to make a UI that would go behind the top buttons or behind the on-screen hand to allow us to "skin" elements of the UI to give my mods a certain cohesive look.