Thanks for the comment block info. I'll give it a shot.
As for managing the libraries, each time the .js is edited does it require PEP shut down and restart to pick up the changes?

My use for Libs, now, are to make simple functions that I use more readily available with just a function call. e.g.

toggleButton(a,b,c,d...)

where the parameters passed are the booloean value for the button, the text to display when true/false, color(s) for the text...etc.

Sometimes the text is on/off (default) and sometimes it's more specific like "Zone 2 On", "Zone 2 Off" ...etc.

Other functions display small icon status indicators for remote zones.

Also, I'd like to have one and only one function to turn equipment on/off so that the states are managed properly.

I should have said that libs seem more straightforward for me instead of using the term "limitation."