External Editor setup

[SolFun]

An external editor is one of the features outlined in Solarus 1.6. How do I set it up? I have downloaded ZeroBranestudio and connected it in the Solarus Text editor preferences but scripts still open up in the default editor.

Edit: Ok I found a reference in solarus gitlab:
https://gitlab.com/solarus-games/solarus/tree/dev/work/ZBStudioPlugin

I followed the instruction in the doc (added the 3 files) but I'm still not able to see the Solarus option in lua interpreter in Zerobranes

I am using macOS