If a "link" attribute is provided for a cf_sebColumn then the value of the cell will be in a link with that URL.
If the cf_sebColumn has a type of "link" then the link attribute will have any bracketed column names replaced with the value of that column for the given row. For example link="page.cfm?color=[color]" would result in a link of "page.cfm?color=red" if the "color" column has a value of "red" for that record.