Im not familiar with 1040NR returns (its been over 15 years since Ive had one) but I tool a look for you, and I agree, I dont see a way to get a figure to flow to that line either...no cross reference, nothing in Help.

This post suggests just entering it direct on that 25g line, but looks like youd need to use Override, which is fine (you just shouldnt need to!), you'll just have to turn off error checking at conversion when you go to EF it.

https://proconnect.intuit.com/community/proseries-tax-discussions/discussion/i-m-working-on-a-1040nr...