Where/how can you modify the pre-installed post templates? The onces you can find when editing a post, under the setting 'LAYOUT' called 'Builder' and 'Intro Header'
I suggest taking a look at the single.php file. This file does manage with displaying all single posts, and you should find the solution by looking inside this file.
Comments
This file does manage with displaying all single posts, and you should find the solution by looking inside this file.
Thanks