Using scenes

I have a problem (to do with lighting) that I think scenes might help with. I remember seeing a tutorial about using scenes, but I can’t find it. (Searching doesn’t help because so many people use the word “scene” without meaning anything so specific.) Can anyone point me in the right direction?

its at the old tutorial section. but that is gone now. ill see if i can dig it up.

edit: found it. here it is:

Yep, that’s the one! Thanks for your (very rapid) help.