Moving Photos Library from External Hard-Drive to new Mac
Lacking space on my macbook pro, I managed to move my Photos Library from my laptop onto an external Hard-drive a little while back. But, more recently I've bought an iMac and would like to save/export the photo library from the external hard-drive permanently onto the iMac! I haven't managed to find any help on how to do this online! Is it possible? It would be a great help - thanks!
iMac 21.5″, macOS 10.15