I'm assuming this is for single posts, right? If so the location of the code would be inc/page-content.php right after line 353
GREAT ! It works perfectly...Thank you so much.I can see the Subtitle when I open a post. I would love to see it in the directory as well. I don't know if "Directory" is the right word in english (sorry for my poor english). I mean the place where people can see all the post of a category. I did a printscreen...
THANK you for your fast help !
That would be in the inc/post-loop.php file probably after line 340