Moving the Canvas

In the GoDiagram Web, the right mouse button can be clicked in the background of the diagram and then dragged to pan the diagram up/down/left/right. Can you tell me how I can change it so this behaviour is achieved with the Left Mouse click (if it is on the background) while keeping the normal behaviour of the Left Mouse click if it is intracting with a node?

You can enable manual panning in GoDiagram Web with the left mouse button by removing the rubber-banding selection tool, since that gesture would normally take precedence.