Creating email alias in iOS 10 no longer possible?

I cannot be the only one with this issue...

Prior to iOS 10, when adding a Gmail account, I could set up an alias for that account... meaning outgoing messages and replies would appear to come from a different address. iOS 10 seems to offer way fewer settings, and no way that I can see to set up aliases. What am I missing? Have searched high and low and don't find even a mention of this elsewhere...