Removing system items from Leave menu in Plasma 5

[Kevin Kofler]

Roderick Johnstone wrote:
> On the other hand, if I select reboot from the Application Launcher
> Leave menu, it just reboots straight away.
> 
> Maybe the Leave menu items are using a different polkit action or
> somehow bypassing polkit?

What display manager are you using? If you're still using KDM (which is from 
Plasma 4, it was NOT ported to the Qt 5 and KDE Frameworks 5 libraries used 
by Plasma 5), then KDM's own settings apply. (KDM runs as root and has its 
own idea of what users to allow rebooting.)

        Kevin Kofler