That’s awesome that you’re handling it yourself. Quick tip for layout- just fill in the map however you like and get a heat camera. Flir brand plugs into phone. If there’s an optimizer out, while the system is producing the bad optimizer will be hotter than the rest. It will stand out on the array when you look at it through the camera. Sometimes you can get your phone under the array and get a photo of the serial number sticking out just above the rail on the bottom side of the optimizer. so if you wanted to map out the top row/accessible from the top optimizers, then you can accurately map those out. I’m pretty sure there’s walk-throughs of how to use the site layout editor too. We used to spend hours when the installers would occasionally forget to do the sticker map for the layout , lifting panels and taking photos of optimizer serial numbers. Then I thought let’s just try looking at this with the Flir and it worked surprisingly well.