For general information about Swimlanes: Working with Swimlanes
Information below is specific to Version Swimlanes.
Your events are grouped by Versions, based on the Version(s) field defined in your Issue Calendars.
Re-order calendars and calendar swimlanes with drag and drop
Swimlanes Hiding and Re-ordering
Re-order your Swimlanes vertically with drag-and-drop. Hide the Swimlanes you don’t need with the “close” button and add them back with the “Add Swimlane” button:
Click on the Swimlane title to access more display options: