%Screen%Mouse% and %Screen%Front% tokens evaluated?

A couple of the %Screen%… % tokens listed in the help don’t seem to be evaluating on my system.

Copy pasting that section of the help file into a display text action, I find that most tokens evaluate properly, but these two seem to persist as literal unevaluated token text.

Am I perhaps overlooking something ? (Testing on a two-screen system here).

1799,815
the current mouse location.
0,0,2560,1600
the frame of the main screen.
-1440,310,1440,900
the frame of the second screen (first from the left excluding the Main one).
0,0,0,0
the frame of the third screen (second from the left excluding the Main one).
-1440,310,1440,900
the (left-most) built-in screen.
0,0,2560,1600
the (left-most) non-built-in screen.

%Screen%Front%
the (left-most) screen containing (the most of) the front window.

%Screen%Mouse%
the (left-most) screen containing the mouse.

0,0,2560,1600
the frame of the second screen.
30
the current system volume.