Hey, first time to post here. We are new owners of a 1985 Hunter 28.5. Really enjoying it so far and we are beginning to get our feet wet (so to speak) with the various systems on the boat. My question is regarding the instrument panel. On the panel (the boat has a Yanmar 2GMF inboard), there is the key switch to the far right, and the push button to start the engine to its immediate left. Above this button is a toggle switch. I've searched the engine's manual and it doesn't include a description of this toggle or what it does. Can anyone help me with this? Thanks in advance.