Services Systemd is a Gnome Shell Extension which allows to start and stop systemd services via a menu in the status area in the main menu panel. As there exists all a lot of irrelevant systemd services - in the sense of beeing displayed in this menu - the user can preselect which services should be shown in the preference dialog of th extension.
The easiest way to install this extension is via the official Gnome Shell Extensions resource page: https://extensions.gnome.org/extension/1034/services-systemd/
For Arch Linux the AUR package gnome-shell-extension-services-systemd-git is provided.
Done via a password prompt from the command pkexec of the polkit package. This command usually pops up a graphical password prompt.
In the recent versions of this extension the authorization is done by pkexec (before via gksu). Therefore if you would like to be able to start systemd services without getting prompted for a password, you will have to configure a polkit policy. The policy file org.freedesktop.policykit.pkexec.systemctl.policy would allow the execution of systemctl [start|stop] without a password confirmation. Simple copy the file in your polkit policy folder (usually: /usr/share/polkit-1/actions).
Planned additional functionality:
- Separators/Groups
- Adjustable systemd folders
- Other services
Some parts have been taken from the gnome extension Services.