How do you drag and drop lanes in Leangoo, move up and down and delete lanes, insert lanes?

Dragging a moving Swimlane:

Drag to add a blank area to the right of the card to drag the Swimlane and move the swimlane position up or down as needed.

Move and delete lanes up and down:

You can move and delete lanes up and down by using the up and down arrows and delete buttons to the right of the list.

To insert a swimlane:

Double-click an empty space between lanes to insert a swimlane.

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How do you drag and drop lanes in Leangoo, move up and down and delete lanes, insert lanes?