Mail Merge - Pages 5?

Hello all,

Maybe I'm just not seeing the right function, but I can't find mail merge anywhere. I have about 50 envelopes that I send out nearly every holiday, and with this latest update of Pages mail merge seems to have dissapeared. I'm not really sure what I'm suposed to do now besides automatically format each one, which sounds about as fun as giving a cat a bath. Please let me know if I'm just an idiot (which is actually totally plausible, I could just not be reading right), or if it's Apple. Thanks so very much!

Mandi