Delete specific files from Passport drive

My Passport drive is nearly full so I would like to delete some files from it.  I’ve checked the solutions to this issue via this forum, but did not understand the solutions, nor can I find the answer in the drive documentation.  If I should be able to delete files using WD SmartWare I can’t figure out how to look at the Passport drive content, except on the Retrieve page and there’s nothing there that would allow me to delete files.  Otherwise I don’t know what else to use because I certainly can’t view a list of files on the Passport drive via Windows (7) Explorer.  Thank you very much for any help with this.  

It’s not possible to delete files from the Smartware interface, you can delete the files manually by going into the smartware.swstor folder in the Passport and look for the files that you would like to delete.