How to e-filed amended 1040x if I used turbotax software?

Filed back in February 2020 using Turbotax 2019 to file my 2019 taxes. 

 

Had to amend and fill out a 1040x to account my sports gambling winnings, but before I mail out the amended forms I read that turbotax can e-filed 1040x forms now. 

 

However when I opened my turbotax software it does not give me that option, however I see that option on the turbotaxonline website but my returns dont show there as I didn't file on the website. 

 

Is it possible for turbotax software users to e-filed their amended 1040x? If so, how to do it? I updated my program but it still told me to mail it in?