Duplicates project items from one project (the origin) to another project (the target).
Both the origin and target projects must exist before calling this method.
This method may require higher-level permissions than the caller has, based on their identity and roles and permissions. In these cases, you can ensure the method is called with the required level of authorization by using one of the following:
ID of the project containing the items to duplicate.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.