We are currently importing external data from our crowdfunding site into RE and wanted to set them up with a welcome series. Since their welcome series would have to be based on an RE query, not a Luminate query we have to manually upload lists into Luminate each week for every message of the welcome series because RE queries do not have the same parameters as Luminate for a welcome series. RE queries have to be based on a specific date rather than number of days in the database. It would be great if this could be added.