Which php file should I Edit to Insert Opt In form in SideBar for Atahualpa Theme?
 

Hi, I am trying to figure out how to insert my HTML scripts for an opt in form into the Atahualpa theme Right sidebar. I see that there is no sidebar.php file. Which file should I use? (P.S. I had tried to look through the other threads but it seems there is no answer for me).

anyone can help will be very much appreciated!