Hi. On a boat I recently purchased it has a 1987 Johnson Bow Mount Electric Trolling Motor. It's a 12V foot controlled model. It seems that to keep it in motion you need to keep the red button on the foot pedal/controller depressed. Is there any way to set it up with "constant on" so that you can set it and not have to have your foot constantly on the button to keep the trolling motor engaged? Thanks