Hi Mouser, You'll probably want to shoot me!
Had another look at the LBC configuration and the parameters ARE copied, just not to where I expected them.
In my defence,
I was phased by the fact that the shortcuts appeared with strange images and all three application commands referred simply to "shutdown.exe". I was afraid to even test the links because I simply didn't want the system to interpret "logoff" as shut down at that point in time. I've now observed that there is an "arguments" field and, as you can see, the switches all go in there - as they should.