Improvement to the documentation
Using Jamroom
It's here:
https://www.jamroom.net/the-jamroom-network/documentation/jamroom-developers-guide/4207/howto-add-a-tinymce-plugin-to-the-system
An example of a module which adds a TinyMCE plugin is here:
https://www.jamroom.net/ultrajam/networkmarket/180/editorcodemirror
I didn't use Aparna to make it but it works for us - the TinyMCE code view is much clearer with codemirror.
updated by @ultrajam: 08/15/16 01:55:32PM