Sorry about the breach, this is my first time posting. No, that's not really what I'm looking for -- I need to be able to do this on individual email campaigns, and filtering by tags would mean I would have to add and remove tags to the contacts on a weekly basis, creating more work for me. I don't want to add contacts to a list, I just want to send particular ones an email without having to create a new list. Basically, I have 30 members of a group (list). Only some of them will be attending a weekly event on any given week, and I send out preparatory materials in advance based on who has RSVPed for that week.
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