As of now, I see that the calculation needs to be done manually, and you need to override the standard deduction amount. There is no way for Lacerte to automatically do this, partly because Lacerte does not support PR returns.

I just need to find if there is a way to display text near the standard deduction line on the 1040 to indicate that the amount is reduced for PR excluded income as described in Publication 570 (page 23) and Publication 1321 (page 3)

They want text stating: "STANDARD DEDUCTION MODIFIED DUE TO EXEMPT INCOME UNDER SECTION 933"

You posted this in Lacerte and ProConnect.

https://proconnect.intuit.com/community/lacerte-tax-discussions/discussion/where-to-display-sec-933-...