At the present time, this command does not work on Mac OS X, due to its reliance on Input Sprocket which has been discontinued.
There a two modes that the input
can be read in from. In the standard mode the mouse and keys
can be read from. In input mode the Poll
Input command can be used but everything else will not work.
This command sets the mode to standard so keys and mouse work
It can be reversed by using
the command Activate Input