How to create the "show in mail" link in Apple Calendar? I'm wondering how can I make the &quot;show in mail&quot; link as seen in the photo below. Currently if i click a date in an email it will automatically create the link in the Calendar app. Can I do it manually for emails that don't contain dates?
How can I link associate a mail with an event in Calendar ?
You can

Drag &amp; drop a mail into the Calendar window to create a new entry with a link to the mail
Open an existing event in Calendar and drag&amp;drop a mail into the &quot;Notes, URL or attachments&quot; field