Kanban board as an overview of all boards

I've posted my suggestion details in a previous post.

In project management layout, all "boards" are shown as a list on the left hand side of the screen. It would be useful to have a kanban board which all "boards" can be shown as separate items on the kanban overview board.

Another way to think about it: a kanban board with many small tickets. And each ticket has the ability to have a gantt project planning within each ticket.