There are two things that I'm looking to set up in a kanban project:
1) Is it possible to add up the values of a field from each filtered issue in a swimlane?
2) Is it then possible to display the sum of the values in the swimlane title (see Total field in mockup below)

I haven't been able to find much with regards to customizing the swimlane title, and it doesn't sound like JQL has the means of calculating a value based on filtered data.
Has anyone else run into a similar problem, and were you able to come up with a solution?