In Kanban view, I can select which columns to show up. I’d like to be able to insert a pseudo-column that is really just a movable divider row. See attached mockup.
In a perfect world it would behave identically to the column rows. Just inherit the column of the outside Kanban wrapper. Only difference is that it would need to be sortable so I can choose where to insert it.
Alternatively, if I could just set the background column on the rows. Then I could make one act as a divider.
Not sue if I am getting exactly what you are saying, but maybe this will help:
In the main board view, change the order of the coulmn to reflect the order you want to stack to be in the Kanban board. Making the column Text will probably be best, so that you can write out the name of the divider. Then you can collapse the column in Main Board view, so that it does not take up too much space.
That is too easy of a solution, so I am not sure if this is what you were wanting to do.