966? where did you get hold of that one? 970 is the first official build number, so you may well have incomplete documentation. as far as i'm aware Ac11 hasn't actually shipped yet. there are a few people floating around with an early upgrade, but that's the lot at the moment.
to answer your question though, the 'ghost storey' no longer exists in archicad 11: refer instead to 'trace and reference' . . .
~/archiben
(in fact, if i recall correctly, 966 was a seriously flawed release candidate. look out!)
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