I have been asked to look into the possibility of multi-level swimlanes.
Here is the use case.
Currently it is possible to base swimlanes on Stories, which can be expanded to show all subtasks within.
I have been asked to find out if this can be done for Epics so that stories could be expanded or collapsed, and then within stories, expand or collapse subtasks.
I understand this is likely not possible out of the box, so any possibilities would be appreciated.
The epics panel on the Kanban backlog is not an option, as that would involve removing a column from the main board.