I have just bought an Easysolar-II GX and before I install it I want to make sure I have all the necessary accessories. I've looked through the manual and online, but am uncertain as to how I am supposed to configure settings like the charging parameters for the Pylontech batteries, or the start switch for generator backup. Do I run VE Configure on my PC and need to buy a USB to RS232 converter? Or perhaps I can do the configuration via wifi or Bluetooth without any accessories?