vc_add_element_box_buttons

Filters the rendered HTML output of the add element box buttons. This allows you to modify the complete list of element buttons displayed in the "Add Element" panel.

Parameters

Parameter	Type	Description
$output	string	The complete HTML output of element box buttons.

Usage

<?php
add_filter( 'vc_add_element_box_buttons', 'my_custom_function', 10, 1 );

function my_custom_function( $output ) {
    // Append custom HTML to the element box
    $output .= '<div class="my-custom-element-button">Custom Element</div>';
    return $output;
}

Source

File: include/classes/editors/popups/class-vc-add-element-box.php