Does anyone has a BKM how to setup Userdefined Language in Notepad++ for JSL? I found an old thread from 2015. but seems like does not work anymore with new Notepad++.
I wrote one a while ago (probably the one you're referencing). It doesn't answer your question, but at predictum we switched to VSCode a while ago and we wrote a JSL extension (that can run JMP and all that). I've never looked back as it's pretty much better in every way.