We have full support of the Elementor for this plugin.
Showing The portfolios in the Elementor page builder is super easy. Just create a page and add the WPB Portfolio widget on your page.
After that all the customization options will comes out. Use this options and customize your portfolio. Make sure you have some portfolio posts to show.
If you want to edit the portfolio details page with the Elementor, we have some others widgets to use. Such as portfolio informations, Short description, gallery.