It looks like the auto-generated options for "Page location" are:

• enforced_lowercase
• Capitals_As_Typed
• subpage/enforced_lowercase
• subpage/Capitals_As_Typed

And the default option is Capitals_As_Typed. If it isn't already possible (and I've just missed it), could future version allow the admin to pick which of these is the default? (I'd prefer subpage/enforced_lowercase)