Support arranging Trello lists into horizontal swimlanes. To start a new swimlane, just add | or a swimmer emoji to a list's header.
NOTE: THIS EXTENSION IS NO LONGER BEING MAINTAINED! Instead, please use the "Trello-Groups" extension at https://chromewebstore.google.com/detail/hppnbiahgpfneemhjkpmfdfloombkmnk
Trello-Groups has taken the functionality from this extension, and then updated it and expanded on it.