J&E custom page template not picking up

This page is currently using a template of a single blog post. It should be using the "full-width page" template. Member is using Listify Child theme so we can work on child theme (edit it). We need to find out what files to copy and how to rename them so J&E would pick up the correct template to use "full-width page" template (from Listify parent theme) on single jobs and experts pages.

So far, we tried to copy "page.php" template and "/page-templates/page-full-width.php" template to "single-jbp_job.php" template in child theme but it doesn't seem to be working.