2T Passport - don't see multiple computer names

Hi -

I saved data from multiple computers and used to see their names on my passport however I don’t see the names anymore. I know the data from all computers have been saved because it is almost full. But since I don’t see other computer names, I don’t know how to retrieve content? Any help, please?

Thank you,

How do you store the data of other computer, in form of backup folder or with the name of computer’s username?
Do you able to access or open data stored in My Passport?

So WD would automatically save the content of another PC under that PC’s name (the name you see when you right click on My Computer). So all those PC names would appear when I go into retrieve task. I simply click on that PC name and it would show me the content that I want to retrieve.
Not sure what happened but I do not see other PC names anymore. I know other PC data is there as my drive had only 32GB left and it still shows the same space. Please help. thank you,