Hi Graham,

Thank you for your purchase.

Sorry for the late response, we have some agents that have contracted Covid-19, so our team is cut in half.

For the hook - you need to place it in functions.php of your theme. It works like this, but you can add another parameter since it's altered in later versions of the plugin:

add_filter( 'wpdatatables_filter_table_description', 'verse_show_entries', 10, 3 );
function verse_show_entries( $object, $table_id, $wpDataTableOBJ ){
    $object->dataTableParams->aLengthMenu = array(
        array(
            10,
            25,
            50,
            75,
            100
        ),
        array(
            10,
            25,
            50,
            75,
            100
        )
    );
    return $object;
}

Hi Graham

Thank you for letting us know, we are glad to hear that

If there is anything else we can assist you with please don't hesitate to open a new ticket.

Have a wonderful day!