Is there a way to know who has made changes or edits on a project within UXpin? If so, how?

I'm interested to learn how other teams of designers and developers are using UXpin in their workflows and collaboration. Are your developers actually using the Specs tools? If not, why not? Are your prototypes getting implemented as is? How complex are the deliverables your handing off?

UXpin doesn't allow users to save different types of Column Girds. This means for each new project/prototype, you have to set your grid layout metrics all over again. What are you doing to solve for this lack of customizability?