Alcatel Unleashed

Hi
I am looking for a command for roll back without reload

Is there any command link this in Cisco:
copy startup-config working

Thanks

i think there was something like configuration apply <filename> but i think this will merge, not replace.

Thanks
I Think i have to create a snap shot file before change
Yes?

i was create snapshot file by command:
configuration snapshot all snap1.snp
and then use the command to restore:
configuration apply snap1.snp
i merged.
how can i replace it?