Profile: Ed

Problem:
The user has a grid view and would like to add a static element(add button) as the last grid cell when the view has results less than 18.

Solution:
The best/easy way is to hook into the view and test how many results it has, if less than 18, we'll inject a default post.
Inside the loop we'll create a condition to display a different content template for that default post.

A sample code to inject the post is:

A sample code to conditionally display a different Elementor template for the default post is:

Relevant Documentation:
https://toolset.com/documentation/programmer-reference/views-filters/#wpv_filter_query_post_process

https://toolset.com/documentation/user-guides/using-toolset-with-elementor-page-builder/create-templates-for-custom-post-types-with-elementor-and-toolset/