Ability to customize RE data output when a member barcode is scanned

Currently, when a member barcode is scanned, the screen appears with very limited information--the Primary Addressee, current standing, membership since date. I would like to be able to customize more. Primarily, I want the screen to display the MEMBERSHIP ADDRESSEE. Some of our member households are Individual members (spouse is not a member), but since the Primary Addressee appears, my front desk staff assumes both spouses are members. In addition, since our Primary Addressee is set up as Mr. and Mrs. John Smith, the wife's name never appears. For security purposes and for the protection of our membership program, we need to have specific names appear and only the names of the members. I would also like to customize the scanning screen to include # of children. We have that in each membership record but that information is not readily accessible to the people allowing a family onto our premises after scanning the card.