What steps will reproduce the problem? See patch, it's just a doc change

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?

Please provide any additional information below.

Thanks!

Actually, I think I get it now. I expect it makes sense in the context of "columns". I wonder if there should be separate doc for each of horizontal|vertical|columns|rows|group|clickableGroup|frame since they really take slightly different parameters. It can be confusing for a newbie. ;)