Mail Merge feature in Pages not described.

So right at the top of this Apple Support webpage a new feature of Pages for Mac is listed. "Mail Merge". Great. But no part of this announcement is linked/referenced. Ok, I'll search. Nope, support has never heard of that even though I'm looking right at a promotion. But it can show me how to set up my email account. And the search appears to have a broad scope across many support topics. But strangely nothing about "Mail Merge". Is this an oversight or am I missing something?