You can also use the cursor keys to move around the grid. Pressing the
return or space keys will place a \cw{\\} or a \cw{/}, respectively,
-and will then cycle them as above.
+and will then cycle them as above. You can also press \cw{/} or
+\cw{\\} to place a \cw{/} or \cw{\\}, respectively, independent of
+what is already in the cursor square. Backspace removes any line from
+the cursor square.
(All the actions described in \k{common-actions} are also available.)