I would like to create 3 journeys to deliver my lead magnets.1. Subscriber registers to receive freebie A. Receives an introductory email with the freebie and then the remaining sequence email 2. Subscriber registers to receive freebie B. Receives an introductory email with the freebie and then the remaining sequence email 3. Subscriber registers to receive both freebies. Gets the introductory emails for each freebie (to deliver the PDF) and then is only targeted with one remaining email sequence (that's = across all freebies). Any suggestions?