In rubymine, when working on a rails project, if i got the a controller action, in the left margin there is a file icon, when i click it it opens either the associated view for that action, or a dialog to create a view.

I’m using the jb gem for json views, and i want the .jb file type to appear in this dropdown list. Does anyone know how to add it? At the moment it only shows ERB, HTML, Text

Thanks