I often use the --isolated-load-context option.
If possible, I would like to apply it when I execute the script by associating. (on windows)

I think it would be convenient to be able to specify it with directives written in the script, but I'm not sure if that is possible in principle.

Even if it can't control it so finely, I think it would be convenient if there was a way to enable it globally in the configuration file, but how about it?