So I imported my LOR preview into xLights and I see this:

Ok, guess the image didn't load. Where should I load images?
Couple things I see here: What do the symbols/icons next to each of props mean? Is there somewhere where I can go see what they all mean? Some items, like the PixelTree outputs/strings why didn't they all import the same?
Also, some items are AC controllers and some are enhanced LOR and some are e1.31 yet the import was all DMX for everything.