Not sure I'm going about this right. In my trailer I have a MPPT 100/15 solar controller installed. I bought a Venus GX and will be buying a Multiplus 12/300/120. I purchased a Raspberry Pi 3 B+ to use instead of a CCGX as a display. What do I need to do to set this all up to seamlessly observe and control my system? I thought I had it figured out until I went to set up Venus OS on the Pi.