[quote="manontherun":3thxnfsj]How exactly could you do all this if you can't use expressions?[/quote:3thxnfsj]
Actually, family expressions are fully implemented. However, they do not appear in the object panel in the parameters dialog, which is a legitimate complaint. In the mean time, the expression 'Family.X' will work as you'd expect (for a Family of Sprites). You just have to type it yourself!