Komodo has a highly customizable user interface which allows you to customize not only the UI but also the user experience. In this screencast we walk through the Major UI elements of Komodo: The Side panes, the Toolbar, and the Editor.
A feature that you may or may not be aware of in Komodo is the Quick Bookmarks tool. The Quick Bookmarks extend bookmarks to make them faster to use by allowing you to access specific bookmarks with a single keystroke.
Collaboration includes many of the main editors features including but not limited to Track Changes and Syntax Highlighting. Nathan and I took it for a spin and just happened to be recording our screens and I just happened to be narrating what we were doing. Have a look and see what it can do!