In the Greenhopper "Task Board" Kanban view, is there anyway to constrain multiple columns such that the sum of the columns has a min/max value? In other words, is there any way for columns to act as "groups" as opposed to "individual columns". For example, I have the following 2 columns:

1. In Development
2. Development Complete

For these two columns as a "group", I would like to set a minimum of 2 and a maximum of 10. In other words, the following are valid:

1. In Development = 0; Development Complete = 10
2. In Development = 10; Development Complete = 0
3. In Development = 5; Development Complete = 5
4. In Development = 1; Development Complete = 1
5. In Development = 2; Development Complete = 0
6. In Development = 0; Development Complete = 2

As far as I know, columns only act independently of each other (i.e., I could set a minimum of 1 and maximum of 5 for both columns individually).