The Dynamics GP Builders and Reporting site has a nice look at Making a copy of a Builder SmartList. I covered this in the original 50 Tips session in 2009 and 2010 at Convergence. It’s nice to see that people keep learning about this feature.
Making a copy of a Builder SmartList
Archived post from 2010. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.