system control toolbox ti nspire cx cas control functions

good day
there is this program archives_voir.php?id=22411 its called control system toolbox 1.5 and it has this function ds2ss and i dont know how to use it, can someone help me?
Regards
PD: i am sorry i dont speak french
there is this program archives_voir.php?id=22411 its called control system toolbox 1.5 and it has this function ds2ss and i dont know how to use it, can someone help me?
Regards
PD: i am sorry i dont speak french