Looking for Intellisense sample for VS 2013

I would like to create a VS extension for my custom text autocompletion. I have read the walkthrough on the MSDN site where the text identifiers for autocompletion were hard-coded into the source code:

http://msdn.microsoft.com/en-us/library/ee372314.aspx

Is there a simple example which contains functionality for adding text identifiers for autocompletion via some sort of UI (dialog box, options page, etc.)?