When I opened this beta version, 4 recovered files came up. I just closed the first 3 that I didn't want then I kept the one open that I wanted to work with.
Will it be doing this by default when you first start it up? The files it recovered were, I think, simply closed because I was done with them.

I played with the lights some more and found that I was able to turn on the already existing lights. Anyway, it's much better looking now.

Nice work Emmanuel!