Is there a way to get lockscreen to have an option to reboot

[Incentive I.C]

The lockscreen allows you to switch users and unlock.Is it possible to add an option to have it reboot or shutdown?

[Mute Ant]

I suppose you are old enough to know...
Holding down Alt and SysRq (which is the Print Screen key) while slowly typing REISUB will get you safely restarted. REISUO will do a shutdown rather than a restart.

• R: Switch the keyboard from raw mode to XLATE mode
  E: Send the SIGTERM signal to all processes except init
  I: Send the SIGKILL signal to all processes except init
  S: Sync all mounted filesystems
  U: Remount all mounted filesystems in read-only mode
  B: Immediately reboot the system, without unmounting partitions or syncing

In a multi-user multi-machine environment, it is extremely rude to break into a screen-locked machine, and co$tly too if something important is being simulated or compiled. Don't expect a GUI button for this any time soon.

[Incentive I.C]

Well thanks for the response but you should have really left out the "I suppose you are old enough to know" it comes off as very snarky and condescending.

[Incentive I.C]

In a multi-user multi-machine environment, it is extremely rude to break into a screen-locked machine, and co$tly too if something important is being simulated or compiled. Don't expect a GUI button for this any time soon.
Mute Ant

Yes but you can pretty much reboot a locked machine by clicking switch users and then you can get to a power menu and reboot and shutdown.

[Mute Ant]

I am sorry. When I read it I hear Black Adder saying it, but that doesn't show up very well.