How can we use the duplicateof link function for other-than-default work item type?

How can we have a non-default work item type act the same way as a default work item type when the user selects the Duplicate Of link or alternately, the resolution of Duplicate.

We are using the Scrum process (almost out of the box). The Defect work item type functions the way we want with regards to the Duplicate Of link or alternately the Duplicate resolution. How can we implement that in other work item types?