Nomad Programmer

It will help you to make only one logged in at a time on WordPress sites. if user wants to log in two or other places than it will destroy all other sessions.
This Plugin uses function like WordPress 4.1, that have a button on the user profile screen which clears all other sessions, and on the user editing screen which clears all sessions. This plug-in can limit simultaneous login. This plugin use for every user automatically.
<h3>Licence</h3>
<a href="https://wordpress.org/about/gpl/" rel="ugc">GNU General Public License</a>

One Active session

Working till now

This plugin clears all other logged in sessions and allow only one login by one user

Webtica

Easily set cookies after an elementor form submission. 
Keeping performance in mind this integration doesn’t add any additional scripts on page load. 
Feel free to post any feature requests and possible issues.

Integration for Elementor forms – Cookies

Easily set cookies after an elementor form submission.

One Active session vs Integration for Elementor forms – Cookies