Hello,   Here you find how to create custom concept in sas contextual analysis http://support.sas.com/documentation/onlinedoc/ca/14.2/utaqsug.pdf Also go through product overview http://support.sas.com/software/products/ca/   For example, you can create a custom concept node named LaGuardia Airport Comments, and then write a rule that extracts all documents in your document set that contain the word LGA. In other words, all of the documents displayed for the concept node LaGuardia Airport Comments would contain LGA.    Hope this document helps you. For more info here   Thanks, ... View more