I'm just a Half-Life mapper. Despite the age of the old HL engine, I still enjoy trying to push the limits when creating maps for it.
One thing I like about QuArK; the interface is awesome. Anyway, where the "eye" is located, that's where the last editor screenshot was taken. So.. quite a bit has been added since then. =)
Correction, the last image was taken where the blue dot at the end of the line connected to the viewing eyeball is located. ... arg.