1. For an object's properties, under the common tab at the top you'll see a checkbox which says "global" this will allow you to access the object more easily in other layouts.
Ehh thats more of a pain than its worth IMHO. It places that object as it was, in its previous state from the previous layout during runtime.
One thing to remember, all objects are accessible from any layout. If you need use one of those objects that were added to another layout into your current layout, simply right click, copy, and paste to the layout you need it on.