Email Blocks: Query Loop

Block Settings

Layout
Query
Reference

Layout

Columns (Default: 2)
Select the number of columns
Gap (Default: 10px)
Adjust the gap between columns

Thumbnail Size(Thumbnail, Medium, Large, and any additional sizes created by a theme or plugin)

Query

Post Type
Number of Posts
Offset
Categories
Tags
Include these posts
Exclude these posts
Query ID*

Reference

List of available merge tags

*To use the Query, add "my_query" in the Query ID field. Below is an example of code to use in your Code Snippets plugin or the theme's functions.php file.

<?php 
add_action( 'groundhogg/posts/wp_query/my_query', 'filter_email_post_query', 10, 3 );

/**
* You can set additional query parameters here
* @param $query WP_Query
* @param $query_vars array original query vars
* @param $contact \Groundhogg\Contact the contact
*/ 
function filter_email_post_query( &$query, $query_vars, $contact ) {    
    $query->set( 'tag__in', [ 1, 2, 3] ); 
}

More details: https://developer.wordpress.org/reference/classes/wp_query/