Update Clientexec single login

Domain: Domain for which Clientexec single login settings are to be done is to be selected from the drop down.

Billing url: Clientexec URL is to be added for the Billing url.

Admin username: The admin username for Clientexec is to be specified here.

Admin password: The admin password for Clientexec is to be specified here.

API key: The API key that one gets from Clientexec is to be mentioned here.

Status: The status can be either enabled or disabled from here.