Editing Custom post type with Elementor requires having Elementor Pro.
If you want to try it out before you can install https://proelements.org/

Here’s a short video guide how to use Elementor on single listing page:

Please note that you need to use one of your listings as a preview (around 00:28 in the video). Otherwise, Elementor will use the standard post view to load the template preview, which won’t make much sense for listing content.

Basically you can rearrange every section or add / display data from custom fields in desired place

This functionality will be expanded with new options and more control for widgets based on your feedback and theme development