Does anyone know what the top row of breakers is for? The rest seems pretty simple. I am doing a new panel with new wire marine and they suggested adding another block somewhere.  Where? I don’t know, as there isn’t a ton of space. It looks like crap and the switches themselves aren’t reliable 100% of the time so that’s why I’m wanting to do it. 

	
		
			
		
		
	
				
			
	
 