how can I configurate Unity IDE to open .cs files with Visual Studio, open .js files with Mono or other editor?

I write script used C# only, but I need read some javascript code build in unity. VS will not highlight all the keywords of javascript, so I want write C# with VS, read javascript with another IDE. How can I do this? I don’t like change preferences every time :frowning:

This is not possible unfortunately, as You can only set one default editor for Unity.