I have an excell spread sheet (see attached). One sheet is a master data sheet. The other is the CP_ownership sheet. As you can see on the master data sheet under the domain column a good portion of the data is repatative. What I would like to do on the CP_Ownership sheet is create a drop down under the Domain column that will only show possible repative domains only one time and when selected populate the rest of the sheet with the appropriate information. I have no clue on how to make this happen. I hope that makes sense. I did create a result 1 and result 2 tab to show you what I'm looking for from a result stand point in the event I was not clear. Also keep in mind the master list can grow over time. Thanks!