I have a MultiPlus 24/3000/70-16 inverter and recently upgraded from Lead Acid to Lithium Batteries. Originally, I had 4 x 12v 200Ah batteries set up as a 2 x 24v 400Ah system. When switching to Lithium I used 2 x 24v 100Ah batteries which my installer programmed into the menu. A week ago, I added another 2 x 24v 100Ah batteries, and now realise that the settings need to be changed so that the inverter knows there are 400Ah available and not 200Ah. As a novice, I don't know how to access the menu to change those values. Can anyone help?