I forgot to include an estimated tax payment to Fed and SC. I have prepared 1040X in TurboTax. Please help me find Schedule AMD for SC to submit to State in TurboTax.

I would strongly recommend you do nothing until the returns are fully processed. more likely than not both the IRS abd state will catch that payments you made were not reported and adjust your return according. filing amended returns before the originals are fully processed can actually delay things. 

Thank you!