We use Epics for projects, break them down into Stories for groups of work, and break those down into Sub-Tasks for small, bite-sized chunks.
Now, I'm trying to add swimlanes to our Kanban board by function. In this case, if Epic A is a part of Function XYZ, I'd like for all of Epic A's Stories and Sub-Tasks to be in the same Function XYZ swimlane.
What's the best way to accomplish this?