Hello @SethJ918 ,
There's currently nothing in the system for adding an unsubscribe link within an email, beyond that standard functionality in the legally-required footer. There's no way to code it in or utilize tools like dynamic content to make a pseudo version of it within the email's body.
The article you reference is for the Lead Gen & CRM system, which uses a wholly different system for its account management from our standard Email & Digital Marketing system - including email building. If you're needing assistance with that system, I'd recommend reaching out to the Lead Gen & CRM support.
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