When using Taskbar, one only needs to right-click the bar, click shutdown and then depress Enter or click Shutdown - which is far very faster (when it works ;-) ) as it needs only 3 actions against 6 when using the TM -.
What about Ctrl-Alt-F, Alt-H, R or C? Or just Ctrl-Alt-Q? This is near to one action for me.
Why does the taskman-shutdown not work for you? -- Helmut Karlowski