I read in the description that OneID enables users to sign-in to WordPress blogs without username/password. However, I am not sure if there is a way to configure or use OneID to allow WordPress administrators to sign-in to the backend of PrestaShop. I installed PrestaShop v1.5.5 within the WordPress directory, and also installed these WordPress plugins: PrestaShop Integration and User Compatibility. If there is a way to modify or configure OneID to enable sign-in between WP and PS, what are the steps required to perform? If not, what WP plugins and PS modules are required for this shared sign-in?