All of this A661 stuff is really new to me, and I don't have access to the specs unfortunately.
So I am really not very familiar with the possibilities that exist. And I don't know all commands, messages, constants etc.
This is why I would like to suggest to add more interactive support to the UA client editors (for scripts):
A very good thing to do would be using tooltips and popup menus in the script editor (like intellisense).
Ideally, the scripting API would be exposed via tooltips and dropdown menus, so that users can get started more easily.
important things would be argument count, argument types, names. But also constants for different layer types etc
Adding a "documentation" tab might be another good idea eventually.