Broadcasts are made effective when segments are added and adding segments in bulk is the most efficient way. Today, when adding a segment via a bulk list from sources outside ExpertConnect, the all pre-existing fields are overwritten. For example, if we've updated the name to "Bob" in ExpertConnect, but the formal name "Robert" is used in our list source, then "Bob" is replaced with "Robert" with the bulk segment upload. Worse, yet, if our new source information has a blank field, then the ExpertConnect field data is erased and (blank) appears where useful information existed previously. Can we have the feature to add segments in bulk by phone or email without overwriting any other fields like Name, Organization, Account info., etc.?