How to add TinyMCE3 custom plugin to DRUPAL 6

Question

I have this module installed and I wanna add a custom plugin to TinyMCE editor. It does not add any button to the editor but it adds a feature where users can right click on a word inside the editor and plugin provides an option to add that word to a custom dictionary and my module will take care of.

How can I add a custom plugin to tinyMCE?

Thanks

Answer 1

Thanks everyone. I found a detailed solution here and it works with no problem. https://drupal.org/node/2237761

Cheers