subpanel-list.js

({
    extendsFrom: 'SubpanelListView',
    initialize: function(options){
        this._super('initialize', [options]);
        this.context.on('list:editrow:fire',this.drawerEditClicked, this);
    },
    drawerEditClicked: function(model){
        console.log(model);
    },
    _dispose: function() {
        this._super('_dispose');
    },
});

subpanel-list.php

<?php
if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
/*
 * Your installation or use of this SugarCRM file is subject to the applicable
 * terms available at
 * http://support.sugarcrm.com/06_Customer_Center/10_Master_Subscription_Agreements/.
 * If you do not agree to all of the applicable terms or do not have the
 * authority to bind the entity as an authorized representative, then do not
 * install or use this SugarCRM file.
 *
 * Copyright (C) SugarCRM Inc. All rights reserved.
 */
$module="Accounts";
$viewdefs[$module]['base']['view']['subpanel-list'] = array(
    'template' => 'recordlist',
    'favorite' => true,
    'rowactions' => array(
        'actions' => array(
            array(
                'type' => 'rowaction',
                'css_class' => 'btn',
                'tooltip' => 'LBL_PREVIEW',
                'event' => 'list:preview:fire',
                'icon' => 'fa-eye',
                'acl_action' => 'view',
                'allow_bwc' => false,
            ),
            array(
                'type' => 'rowaction',
                'name' => 'edit_button',
                'icon' => 'fa-pencil',
                'label' => 'LBL_EDIT_BUTTON',
                'event' => 'list:editrow:fire',
                'acl_action' => 'edit',
                'allow_bwc' => true,
            ),

            array(
                'type' => 'unlink-action',
                'icon' => 'fa-chain-broken',
                'label' => 'LBL_UNLINK_BUTTON',
            ),
        ),
    ),
    'last_state' => array(
        'id' => 'subpanel-list',
    ),
);