Horizontal (Ctrl+H). Performs horizontal symmetrical transformation of board with the position.
Vertical (Ctrl+V). Performs vertical symmetrical transformation of board with the position.
Diagonal \ (Ctrl+\). Performs diagonal ( axis: from left top - right bottom corner) symmetrical transformation of board with the position.
Diagonal / (Ctrl+/). Performs diagonal ( axis: from right top - left bottom corner) symmetrical transformation of board with the position.