List view action in contracts module

Hi,

Someone created a list view action for a custom module, but the customer decided they want this action available in the contracts module.

I moved the recordlist.php to: /custom/Extension/modules/Contracts/Ext/clients/base/views/recordlist/recordlist.php

and the massupdate.js to: /custom/modules/Contracts/clients/base/views/massupdate.js

But the action still shows up in the previous custom module and not in the Contracts module. Why? What am I doing wrong?

Thanks,
Stijn

<?php
$viewdefs['Contracts']['base']['view']['recordlist']['selection' ]['actions'][] = array(
    'name' => 'div',
    'type' => 'divider',
    'acl_action' => 'view',
);
$viewdefs['Contracts']['base']['view']['recordlist']['selection' ]['actions'][] = array(
    'name' => 'create_only',
    'type' => 'button',
    'label' => 'LBL_CREATE_ONLY',
    'primary' => true,
    'events' => array(
        'click' => 'list:createonly:fire',
    ),
    'acl_action' => 'view',
);
?>

// massupdate.js
({
 extendsFrom : 'MassupdateView',
 initialize: function(options) {
 this._super('initialize', [options]); 
 
 },
 delegateListFireEvents: function() {
 this._super('delegateListFireEvents');
 this.layout.on("list:createonly:fire", this.CreateOnly, this);
 },
 CreateOnly: function() {
 var itemsSelected = this.context.get('mass_collection');
 console.log('run action: ', itemsSelected);
 }
})