demo_suppliercontactdetails_subpanel.php

<?php

$layout_defs['Demo_Suppliers']['subpanel_setup']['demo_suppliercontactdetails'] = array(
    'order'             => 130,
    'module'            => 'Demo_SupplierContactDetails',
    'get_subpanel_data' => 'demo_suppliercontactdetails',
    'sort_order'        => 'asc',
    'sort_by'           => 'name',
    'subpanel_name'     => 'Demo_Suppliers_subpanel_demo_suppliercontactdetails',
    'title_key'         => 'LBL_DEMO_SUPPLIERCONTACTDETAILS_SUBPANEL_TITLE',
    'top_buttons'       => array (
        0 => array (
            'widget_class' => 'SubPanelTopButtonQuickCreate',
        ),
        1 => array (
            'widget_class' => 'SubPanelTopSelectButton',
            'mode'         => 'MultiSelect',
        ),
    ),
);