You can install the Group Doorman directly from the Google Chrome extensions. But in case you need to install it from the archive – here is a step-by-step guide for you.
Before we dive in, make sure to unzip your archive into a dedicated folder.
1.Find the three vertical dots (1) in the upper-right corner of the page and click on them. Then click Settings in the drop-down shown.
2. Now in the side menu, scroll down until you’ll find the Extensions tab and click on it.
4. When the Extensions page opens, turn the Developer mode switcher to on.
5. Thereafter, click on the Update button, placed in the developer’s menu bar. Now wait a bit, and restart your browser.
6. In the modal window, that appears, find and select your unpacked extension build (1) and click Select Folder (2).