@VinodthakurThere are two options:1. The node
/jcr:content/cq:LiveSyncConfig under each of the live copy root has the
property 'cq:master' which stores the blueprint page path. Update this
property with the new blueprint path. Go to Sites console, fetch the
references (Live Copies) for new blueprint, select specific live copy
and synchronize (with subpages). This would update all the live copy
pages to new blueprint.2. To achieve this programmatically, write a
servlet and use
https://javadoc.io/...