Can TT amend an accepted amended return? (CD version)

Can you amend an amended return ?   Sure ... column A of the 2nd 1040X must have the figures from the column C of the original 1040X  and the downloaded program should let you do it. 

What downloaded program do you mean?  I have the CD

The CD is  the same as the downloaded program ... both are installed on your computer. 

got it. thanks

@Critter-3 

 I think you meant to say

column A of the 1040X No.2 must have the figures from the column C of 1040-X No.1.

IRS says you can e-File 1040-X three times.

It's not clear yet  whether TurboTax will let you e-file 2022 1040-X No.2.

@Siriusbird