Adding a column via applescript
 

In a script I'm writing, it would be useful to check if a column exists, and if not, to add it. I have not been able to find an example of this. Can someone kindly point me in the right direction?

Clarification
 

The application I'm attempting to write this script for is omnioutliner 3.

nm, figured it out:

make column with properties {title:"Test"}