Issue Summary:

Currently, Jira boards only support grouping issues by the default system Epic issue type. When using custom issue type hierarchies (e.g., Task/Story (0) > Epic (1) > Feature (2)), there is no ability to group issues by their parent custom issue types (e.g. by Feature (2)). Specifically, users cannot group Epics by their parent Features on a board view, limiting the visualization and organization of work items according to their hierarchical structure.

Expected Results:

• Users should be able to group issues on board view by any parent issue type in the hierarchy.
• The grouping functionality should work similarly to how stories can be grouped by default Epics.
• Features (level 2) should be groupable by their parent Epics (level 1) on board view.
• The grouping option should be available in board settings under the Group By dropdown.

Actual Results:

• Only default system Epic issue type is supported for grouping.
• Custom issue types at or above the default system Epic (hierarchy level 1) are treated as regular issues.
• No option to group Epics (level 1) by their parent Features (level 2) in board view.
• Custom issue type hierarchy is recognized in the system but not reflected in board grouping capabilities.

Workaround:

Currently, there is no workaround available.