How do I set it up to direct to a url AND send the incentive email? I was told this is possible during a convert kit webinar but I haven't been able to figure out how to make it work. I created a landing page for subscribing to a waitlist and I set it up to direct to a url once the name and email is submitted, and I created an incentive email that I want to get sent at the same time as well. However, I test it and it doesn't seem like the incentive email is being sent. Second question, how can I preview the incentive email without having to test/receive it myself?