Hello,
I have a Samsung D3 Station External Hard Drive which I have moved files from my iMac onto. When I plug it into my MacBook I can see & copy files onto desktop but can't amend the files or add any more to the drive.
I can't see any options when plugged into the iMac to change permissions to read & write.
Please can anyone help/advise what I need to do to use this on both computers? Than you for any help in advance 
