Install indicator-session by entering the following commands in the terminal:
sudo apt update sudo apt install indicator-session
Description:
indicator showing session management, status and user switching
This indicator is designed to be placed on the right side of a panel and give the user easy control for changing their instant message status. Switching to another user. Starting a guest session. Or controlling the status of their own session. . It requires some way to be hosted into a panel. For the GNOME Panel the appropriate package is indicator-applet-session.
Homepage: https://launchpad.net/indicator-session
Version: 17.3.20+17.10.20171006-0ubuntu1
Section: universe/gnome