Log out, Reboot, Shutdown Options.[SOLVED]

[karlheinrich]

Right click /Desktop/Configure Desktop/Mouse Actions/Right Button/First square to the right of "Standard Menu" and before INFO and DELETE squares/Leave

You can then go to System-Settings/Startup and Shutdown/Desktop Session/Default Leave Option.
I keep mine on "End Current Session". Which will log out and from there you can reboot, Poweroff, or resign in to another session.
Or if you want to make a choice on the desktop, Select in General/Confirm Logout. Hope that's explicit enough.

Thanks for the detailed 'walk-through'.
I'll mark this post as [SOLVED].