Retirement tax questions

Hello,

My situation is similar, but for the 2019 amended return, which I should have included 3 state refund amounts. Do I have to attach a copy of the 1099-Gs that contain the two of three amounts that I failed to include on the original return? Also, in one of the other replies, it was mentioned that there is a Part III in the TT Amendment CD app to use to document what changed, but one was not in the 2019 PDF amended return (with 1040-X) that was produced. Then how would I indicate to the IRS what changed? Thanks.