Using an Addin you can:

• Retrieve and set the active document text
• Insert text at the active selection
• Move to and replace selections
• Set document attributes like themes in editor and preview
• Use a custom Markdown Parser
• Hook into document life cycle events (load, save, updated etc.)
• Add menu and toolbar items
• Create entirely new features and hook into the sidebars
  (similar to the folder browser, bookmarks, or favorites list)
• and much more...

This section describes how to create add-ins and documents a couple of the built in add-ins.

• Creating a Markdown Monster Add-in
• Accessing and manipulating the Active Editor Document
• Addin Lifecycle Event Handlers
• Bringing up UI from your Markdown Monster Add-in
• Adding Menu Items to the Markdown Monster Menu
• Creating a custom Markdown Parser in an Addin
• Create a Markdown RenderExtension to customize Html output
• Addin Configuration Class
• Creating non-Visual Addins
• Use the Statusbar and Console Output Panel to display Information
• Addin Creation FAQ