Meta-Traits
A "meta-trait" is a collection of traits that are typical of a particular mental, physical, or supernatural state. In game terms, it functions much like a regular advantage or disadvantage. A meta-trait can be part of a racial template or bought by an individual with exotic abilities. Record a meta-trait instead of its components on templates and character sheets.
With GM approval, you may modify elements of a meta-trait, altering its cost; e.g., to be able to carry things when you have Body of Air, reduce the ST penalty and the corresponding HP bonus, and delete No Manipulators.