Custom plugin doesn't show up on toolbar

Hi everyone,

I'm completely new to CKEditor and I'm trying to tackle the challenge of adding a custom plugin to the toolbar. I've installed drupal 7, CKEditor 3.6.2, and I'm running it locally using acquia-drupal.

My question is after taking the necessary steps of creating a folder called "inserthtml" in plugins with the plugin.js file inside and then adding

config.extraPlugins = 'inserthtml';

into the config file, to my understanding it should theoretically appear in my ckeditor. However, I'm not sure if there are some other areas that I'll need to edit in order to have it show up.