Is there a new procedure for Non-Resident Alien Spouse on Tax Return?

It used to be that I would print out the tax return and, in the place, where her social security number would go, I write "NRA" for non-resident alien, since she doesn't have one. But now, it shows this: 

 

https://imgur.com/a/7CdKRKD 

 

In case you can't or don't want to open that link to view the image, this is what the Filing Status section looks like now: 

 

Filing Status-Check only one box.
-Single
-Married filing jointly (even if only one had income)
-Married filing separately (MFS)
-Head of household (HOH)
-Qualifying surviving spouse (QSS)

 

If you checked the MFS box, enter the name of your spouse. If you checked the HOH or QSS box, enter the child’s name if the qualifying person is a child but not your dependent: (Then it lists my spouse's name)

 

(Here is where my big question is, it then says:)
If treating a nonresident alien or dual-status alien spouse as a U.S. resident for the entire tax year, check the box and enter their name (see instructions and attach statement if required)

 

What instructions? What statement if required? Do I still need to write in NRA?