Hi Antonio,
Thanks for writing back and for sharing the update.
I noticed that Christian has helped you in clearing some of the usage issues, but I'll be happy to give you a quick overview as well.
1. It is not recommended to use Toolset Layouts and the Elementor page builder plugins together, because both are layout builder plugins and there no benefit of using them at the same time.
Other Toolset plugins like Toolset Types, Toolset Views, Toolset Forms etc, would work just fine with Elementor.
( https://toolset.com/documentation/user-guides/using-toolset-with-elementor-page-builder/ )
2. If you'll check the gallery guide from Agnes that we've been discussing ( https://toolset.com/2017/10/adding-a-gallery-of-images-for-custom-posts/ ), you'll find a link to a demo gallery page that shows the result ( screenshot: hidden link ):
hidden link
If you'll check that demo page, there is no image carousel. At the top, a full-sized static "featured image" is showing and at the bottom image gallery created from the repeating image custom field is showing. Clicking the image opens it in a lightbox/popup.
3. I found the content template "Gallery2" that you have created at:
hidden link
I added its shortcode "[wpv-post-body view_template= "gallery2"]" in your Elementor template ( hidden link ) and now the image gallery is showing same as the guide from Agnes.
( screenshot: hidden link )
4. That guide is using a third-party plugin "Easy FancyBox" ( https://wordpress.org/plugins/easy-fancybox/ ), for the image popup/lightbox, but your images are automatically shown in popup/lightbox, because of the Elementor plugin.
5. For the image carousel, as Christian explained, you'll either need a third-party plugin or a professional, who can custom develop it for you ( https://toolset.com/contractors/ ).
I hope these points will help.
regards,
Waqar