It would be great to be able to enter / upload a block of Redtail contact IDs and then be able to add them to a tag group for other bulk related options. Often we export a list of contacts that we then work on in a spreadsheet thus eliminating some of the exported contacts. After we've worked the export, we'd love to be able to enter or upload the list of contacts from the spreadsheet into Redtail and add them to a tag group for further manipulations.