@Engavi what's your decision for writing new Actionbars? Or have you tried reusing Blizzards Actionbars before?
I'm kinda in the same situation as you, needing some sort of customizable Actionbars.
I'm currently using an old version of zorks rActionbar which actually works really nicely.
But I wanted to add and ingame config and starting running into issues (like somehow 2 actionbars have the exact same spells on them, but the macros, position etc. are correct)
So I'm thinking of doing something like you and using LibActionButton.
My current situation looks like this if you wanna read some code.
https://github.com/gempir/gempUI/blo...nbars/bars.lua