Remote access

I am not sure if I am going down the right path here but i want to back up my wife’s Mac to the MBL storage. it seeems this is not possible. and so should I download her content to a hard drive to connect via my PC which is running the MBL? Confused!!

From your Mac you can Time Machine to backup your files automatically, you can also map the My Book Live and copy the files manually. Check the link below for the steps.

How to map a WD network drive on a Mac