After you file

Are you using the Online version?  Sorry you are too late.  Online has closed for 2019.  2019 is now the prior year.  You have to switch to the Desktop program.  

 

How to finish a prior year online return

https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-finish-a-prior-year-return-that-i-...