Anyway we can copy cell details via BR?

Yes. The rule will essentially export the cell detail into a csv. OS looks at that file and appends each line with the new data unit dimensions. Finally it imports the file to the new data unit. It will need to be triggered via data management in order to know the source and destination data units and the file path.

Thanks chul I guess not ideal way but will give it a try. I wish there was a simply data copy function for this as well.