toolbox/block_template_dirs
This filter allows you to add a custom block directory to the paths list.
Parameters
$directories
(array) array of absolute paths
Usage
The passed in $directories
parameter is an array of directories where the ACF Block loader will search for Twig templates that are compatible.
Return value
Make sure to return as array.
Example
<?php
/**
* add the directory 'custom-blocks' in your (child-)theme folder to the paths to search blocks.
*/
add_filter( 'toolbox/block_template_dirs' , function( $directories ) {
$directories = array_merge( $directories , [ get_stylesheet_directory() . '/custom-blocks/' ] );
return $directories;
} , 10, 1 );