What is the purpose of the columns(int number) of Delivery Pipeline Plugin? According Job DSL Plugin and its view reference document it specifies the number of columns. I have tried changing this setting to different values and I do not see its effect.

My Delivery pipeline has 3 stages with 3-4 jobs each. What should I expect?

Jenkins v1.619
Delipery Pipeline Plugin v0.9.4
Build Pipeline Plugin v1.4.7

Stackoverflow question for reference: Deliver Pipeline Plugin and its columns property does not work
Google groups post: columns property does not work