Added a method to set a layer depth in a action-like fashion.
Added a method to set a layer depth in a action-like fashion.

joansmith/tripleplay,joansmith/tripleplay,tomfisher/tripleplay,tomfisher/tripleplay,tomfisher/tripleplay,tomfisher/tripleplay,tomfisher/tripleplay,joansmith/tripleplay,joansmith/tripleplay,joansmith/tripleplay