I know about the feature of
Admin Account Sharing of magento2. Using this feature if someone login to admin panel from another device then already logged in user get expired session error and logged out automatically.
But I want if any admin user is already login in admin panel and same user or another user try to login in admin panel then user will get message that
any admin user already logged in system.
So Is there any setting in magento2 for this or any extension for this?
If no then How can I develop my own module to to so?