Hello, I would like to know if there is any way to copy reports created in a domain in OpsCenter and transfer/copy them to another domain or would I have to create them all from scratch?
Yes you are do it to do copy query for each of report as mentioned by "Tape_Archived"
2nd You can also do the below simple process if don't know much more scripting.
1) Download the OpsCenter report locally and note down the report file name.
2) Create the normal copy/move command from command line or power shell and create the similar script and configure the scheduler for automation.