I did come across that post previously, but it seems to reference older versions of DNN, I am using DNN6.  That specific directory specified in the post you linked does not exist anymore.  Through further research I did see that modifications can be made through the HOST menu, under HTML Editor Manager.  However there is no documentation on how to modify the toolbars using this new method, that is what I am looking for, for starters....

As for the Code Snippets, if I instantiate the RADEditor directly, then it's a simple matter of accessing the Snippets collection property and adding my own.  However, using the DNN Implementation of the RADEditor, I can't seem to find a property that allows access to the Snippets. Even if the DNN Implementation did not account for creating a public access method to manipulate the Snippets collection, should it not at least give a way of retrieving a direct reference to the underlying RADEditor control, so then I can manipulate the Snippets Collection directly?