Buttondown Documentation
Yes, you have the option to link up to two related emails. These will appear at the bottom of your email, and your web archives.
To link a related email, you'll:
These related emails will appear at the bottom of your newsletter, and your web archives.
Yes, to do this, you'll open your email, then click the details button on the bottom right.
Open the Metadata accordion, select those emails, and hit save.
This will use the "Share image" associated with the email. To update this open the email in the editor, click Details → Archives → Share Image
This option will only appear if you have past emails you can link. To unlock this feature, send your first newsletter!