got it working. If you need a solution for this check stackoverflow.com/questions/46615976/…

check my answer here with the solution stackoverflow.com/questions/46615976/…

Thanks, I was looking at the same in the docs. I found some other answerds saying that it should work by setting 'post_type' to my type (other than post or page), but it looks it changed.

Hi, thanks. I am not entirely sure because it is part of a theme I bought. What I see is the following URL when I click on the menu example.com/wp-admin/edit.php?post_type=question I am trying to find the piece of code where 'question' is registered, but it might take me a while. Thanks for your time, and if you have any clues I will appreciate it!