Based on Master Password v1.0 by Acheron for OSC 2.2 All credit to original authors I needed a simple Master Password modification that actually works. Description: This simple mod will add a master password to your site which will allow you to login to any customer's account. Possible uses include: (a) completing checkout if a customer did not return to your site from the payment processor, (b) troubleshoot a customer's account, (c) manually enter orders for existing customers, (d) Reset the customers password for them The master password can be set and changed in the Admin CP: Administration --> Configuration --> My Store