Would love some details on how to do this, I've been a (business) CF customer for a while now and have never seen this service and I haven't turned up anything

Would love some details on how to do this, I've been a (business) CF customer for a while now and have never seen this service and I haven't turned up anything googling/scouring their website for it just now. Details much appreciated! EDIT: Spoke too soon: https://support.cloudflare.com/entries/22054357-how-do-i-do-cname-setup https://support.cloudflare.com/entries/22054357-how-do-i-do-... shame it's so convoluted