Use CtrlX IO Engineering to change EtherCAT Address question?

Hello CtrlX team

I have a question,I wonder if the EtherCAT address can be changed or not ?

what does "configured station alias(ADO 0X0012)" for what do?

If i Specified address through configured station alias(ADO 0X0012) ,then the EtherCAT address will be changed to what i specified after I download the CtrlXIO configuration?

Please give a help,Thanks a lot .