Thanks for the reply William.   First part: I've seen you can create a list as you describe. I understand that when importing contacts I can chose a list to add them to. However, this does not work when I import a list of contacts, each of whom may belong to a variety of lists: When I create a list to import, I tag each contact with appropriate tags. I have created Segments based on each tag, and once imported, each contact is automatically included in their relevant Segments -- contacts may belong to one or more of 12 segments. In the scenario where I have a List created from each Segment, I can add all contacts to my main List (all my contacts), but since the contacts I’m importing may belong to different "segment" lists, I cannot select any of the “segment” lists as that would add all contacts to the “segment” list. I’d have to manually edit each contact to add them to their appropriate "segment" list. That's an extra step and kind of defeats the purpose of having segments as far as I can tell.   And when exporting from a List, I can choose to export any or all of my fields, but when exporting a Segment, the only fields I can export are email, name, and date added. Hard to understand why I can choose any field when exporting a List, but have very limited fields to chose from when exporting a Segment.  Am I missing something?    Second part: Modify Columns lets you choose from a limited number of fields. I have other fields in my database, notably phone number, that are not available to include in the column view. Again, am I missing something?   It seems like it would be fairly easy, when either viewing or exporting a Segment, to provide the ability to select any of the available fields, as you can when you are exporting a List.   Hope this makes sense. Thanks for your help.  ... View more