In certain cases I find that I have a need to view a Greenhopper Kanban board without the applied swimlanes.

For example: a case where we use Jira to define which tasks is to be queued on the development queue for the comming week, with swimlanes based on what system the task belongs to. On this board the rightmost column is the dev-queue, and prioritizing the tasks by drag'n'drop regardless of a which system it belongs to seems impossimple on this board.

If swimlanes could be toggled on/off with a click of a button one would acheive two different views of the same board.