NB: Infinite scroll on posts is available only with Attesa PRO plugin.
This option allows you to automatically load your blog posts when the user scrolls down the page without having to go to page 2, page 3, etc. …
To activate this option, go to your WordPress Dashboard under “Appearance-> Customize-> Attesa Theme Options-> Posts and pages settings“, go under the “Main blog page” section and find the option called “Activate infinite scroll on posts“.
This option works well with Masonry (the image above is an example of Masonry with Infinite Scroll, but it also works with full posts, excerpt and grid).