--Change attribute of the station 
--When the MU transfers to the successor of the present station, an attribute of the present station is changed.
--Change an attribute of the present station
--When the MU transfers to the successor of the present station, an attribute of the present station is changed. 
--Note that the attribute will also be changed, when the MU could not be transferred.
--@ is the MU that triggers the control
--? represents the station calling this method
is
do
	?.attribute := value;
	@.move;
end;
/*attribute:Enter the attribute of the station which is to be changed, when the MU is transferred.
value:Enter the new value of the attribute of the station.
*/