About 7 days ago I finished this “Input Animated Overlay Editor” written in Python.
https://www.youtube.com/watch?v=p0TYmkHt5lw
Yesterday the OG Script had a small update to include Shader parameters automatically... the only user input it now requires is double checking if your inputs are right, i.e. that you do not have repeated inputs and or add analog_stick parameters in your Overlay.cfg file.I made it to aid myself to do my own Input Animated Overlays.
Just letting any enthusiast/artist know that this tool exists.
Unfortunately I can’t share right now, there’s little interest in it, but I might change my mind if there’s support.
EDIT: The “can’t share” means “won’t do for free currently” as the tool is available in my Ko-Fi for a price… you see, if you check the “dIsCusSIoN” in the subreddit, I was asked for it… but once it’s provided, the interest wore out… wonder why? 
These two were tests to check if the script did it’s job right, and it does.