* Add "subtasks" type action board
* Each column will contain a work package
* The cards in the column are filtered to show only the selected work package's children
* All work packages in the project that are elligable to be a parent may be selected as a column (no milestones)
* Work packages can be dragged and dropped between parents

**Open for discussion**

* Permission handling if selected work package is located in a subproject Begin of the insertion

End of the insertion Begin of the deletion



End of the deletion **Related pull request**: https://github.com/opf/openproject/pull/8504 Begin of the insertion

End of the insertion Begin of the deletion

End of the deletion **Notes**

* Create a new action service
* To change the parent relation: frontend/src/app/components/wp-relations/wp-relations-hierarchy/wp-relations-hierarchy.service.ts
* Column creation modal should contain a typeahead Begin of the insertion

**TODO**

* Upgrade account to have access to boardsEnd of the insertion