Event tracking

I would love to be able to drop a list of names into the copilot and tag them all or add them all to a specific group while also updating a custom field. I attend a bunch of events and have a custom field (how did I meet this person) and it would be great to update all the records just from a command. The upload feature doesn't help because I dont want to replace any previous data if the person already exists.

The same is true of adding a bunch of existing contacts to a group/tag like "past coworkers"