As close as I can tell, this is an unimplemented feature, by that I mean, the command was written, but no official help.txt was ever written. However it does look like someone on the Backshed took up the project.
As close as I can tell, this is an unimplemented feature, by that I mean, the command was written, but no official help.txt was ever written. However it does look like someone on the Backshed took up the project.