Amended return: where do I add a missing 1099-DIV?

I forgot to include a 1099-DIV on my 2019 return.  I went to the amended return section of TT, but all I see is how to update W2's, 1099-MISC, 1099-R, etc.  There is no TT button for amending a 1099-DIV.  How do I enter it?