@PL1 I'm not familiar enough with AMT to address your question. I'll ask my fellow SuperUsers if anyone can assist. If you get no reply from any of them, perhaps a TurboTax Support agent would be able to assist.
To contact TurboTax Customer Support, use the info linked below during regular business hours.
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/01/25632
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*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
