We have a club of about 80 active members. Every week we'd like to send an email to only those people who have not signed up for certain events. We can use AI (probably Claude) to create a nice table and message for us. We'd need to be able to use the names from that message (a subset of our main mailing list) to send out the update. We don't want to have to go to the main mailing list and manually change entries for selection. Is this possible with the current product or a future development?