Subcomponent Hierarchy Readonly Custom Field
Build-in Component field of an issue displays the project components selected for the issue. It doesn’t show the component hierarchy. Due to technical reasons, it is not possible to modify build-in component field to show hierarchy. For this reason, we have added another read-only custom field that displays the hierarchy of selected components on the issue view. If you want to display component hierarchy of the issue you can add “Component Hierarchy Custom Field” to issue view.