This feature is available in Catalyst, Enterprise, and Ultimate editions.
By default, Lifecycle displays predefined fields that allow you to capture common data and manage your workflow. If needed, you can go beyond the default options and define your own own custom fields. This allows you to track data that is specific to your organization and the way it works.
Here are few things to note:
Custom fields display site-wide.
To share a custom field between a Story and a Defect, add the field to "Backlog" (the system name is "PrimaryWorkItem"). This is helpful if you want to make it required, as it will not impact any conversions between the two asset types.
Custom fields migrated from releases prior to R6 require that a column be created in order for them to display in the application. See Custom Columns below to enable these fields.
Custom fields are available on Acceptance Tests, but not in Regression Tests. You can add values to the Status dropdown for Regression Tests but there's not a way to actually add a new field.