Show ex4100 on network remotely

If im on my home network, i can see my cloud ex4100 showup under network in windows explorer and can copy files to it.

However when i am out remotely connected to a different wifi the drive dissapears. I need to know how to have it show up under network drives when i am remote (so i can copy and access files from and to it). any ideas? Am i missing a simple setting?

Well, no chance of it showing up automatically.

The only option I know of is to use WebDAV.

no idea about this. will this allow me to see the drive as a network drive when i am away remotely. i want to be able to access / upoload and backup while i am away. let me know how?