custom php file ondemand version

Hello

Is there a quick way to create custom/Extension/modules/Accounts/Ext/Layoutdefs/custom.php

<?php $layout_defs['']['subpanel_setup'][''] = array (); ?>

on the suitecrm ondemand version ?

Hi Geert,

SuiteCRM:OnDemand is meant for customers who wish to have a problem free SuiteCRM solution, hosted and supported. If you need customisations, please contact us.

Thanks,

Will.