EDI Validate GS segment on TN


Need help. I am interested in validating the EDI doc based on GS segment values in TN. Partner is going to post EDI X12 3040 824 doc to TN.

I have created enterprise and partner profile with DUNS numbers. Created document type from Admin screen and created processing rule with above combinations. Things are working fine with these combinations.
But now I need to validate the EDI document based on GS segment values.

Can you please let me know how I can validate/recognize the document based on GS segment values. Can I put/bring bring GS segment keys (EDI) in profile → corporate → External ID Type drop down (similar to DUNS)?