Fill in the form at the bottom of the page with the fields as defined below and click Add:
Issue Type: The issue type. This can be a specific issue type or an "All unassigned issue types" which is used by default for all issue types which does not have mapping explicitly configured for it.
Mapping: The mapping to use with the issue type, as configured in the Mapping configurations (see Configure Mappings).
The new issue type-to-mapping configuration will be added to the list that is displayed on the same screen.