Great question! Here are a couple of ways to add that email to your newsletter in Decile Hub:

For a newsletter you're still editing:
- Use the "Individual Recipients" field while editing the newsletter to manually add the address.

For an already-published newsletter:
- Click the "Send to Additional Recipients" button in the top right of the newsletter. This lets you add people from your directory and they'll be included in all the stats.

You can also add people to your People Directory first and then target them via tags, pipelines, or direct selection. Hope that helps! 😊