You're gonna love this.... Intuit does a really impressive job of hiding it.... first of all, you're going to want to activate the efiling for it on the federal info worksheet (you can find it under 'state' stuff
To find the 1127 you have to go into ST New York Individual
Then, you get to go to ST New York City Individual
Then, under the forms menu you might find NYC-1127
If you manage to master that I'll let you know the hoops you have to jump through to efile a NY amended return...