Well, so far: Clicking 'Generate LOS' in the toolbar simply opens up a new window. The new window has four generation buttons, a few debug options, and options for saving/loading data of some kind.
I tried clicking the buttons, but nothing happened, so I loaded a random part of my worldspace. Clicking buttons then, from top to bottom, generate a grid of blue squares in my worldspace along the ground, in 4 of the loaded cells. I continued clicking each button in order, and various other markers and boxes appeared in my worldspace. The blue square grid went around buildings and objects such as tall walls/fences. It appeared to be mapping out where the player could stand, and what they could see?
It did all of this very quickly, but as far as I can tell, only for the few cells that I had loaded. The generate buttons were for: Quads, Occlusion, LOS, and Grid. I clicked all four, after each click my CK puttered for a few seconds, then displayed a status update. After clicking all 4, I was left with this output:
Found 2091 quads in 590 quad groups in 86.29 ms
Found LOS between 590 quad groups using 8243133 picks in 17972.50 ms( 769047 simple LOS, 0 occlusion checks )
Constructed 6 cell grids in 118.99 ms
It saved the data in text delimited txt files in Skyrim/LOS. However it did not appear to alter, or save any data into my esp.
So all in all, I'm really not too sure what this has accomplished. I'm going to try precomputing occlusion for my entire worldspace now to see what happens.