DS 160 Doubt after change the consulate center

[Karna11]

Hi friendz,

1st i made the schedule at Ottawa For H1B stamping with DS 160 form ID, after few days i rescheduled the date and change the center also ,

but now how can change the new DS 160 form ?

if i start the new DS 160 form with new center after getteing Application ID, how can i update the new iD at visa appointment site.?

after creating the new DS 160 form with new center , what bout the OLD one?

please give me u r valuable reply ASAP.

Thanks in Advance