Choose Perl as your language, as it will provide good highlighting and allow to fold blocks of code and comments.
In addition, to be able to toggle comments, you need to add this file to the same 'User' folder. Imperator developers have released Sublime Tools with syntax highlighting and function search. (Note: if the extension isn't up to date with the patch, it may show many false errors) To install it, go to Extensions on the left panel of VS and search for CWTools. There is a fan-made CWTools extension for VS, which recognizes Paradox code language, will warn you of missing brackets and show information about scopes and effects in a tooltip.
Create a mod instead of directly modifying the game files, as they will be overwritten with any game update.5.1 The mod doesn't work after uploading to Steam.
