FYI. Your title is a bit misleading. Normally when someone puts something in brackets like [HowTo] it means their post is a how to do something. Not a post that simply asks questions on how to do something.
Officially without using the; WD apps/software, or the MyCloud.com web portal, FTP, or using a link generated by one of the WD apps/software, it is not possible to officially create a remote connection to the single bay My Cloud.
Unofficially, and which may/will void the My Cloud warranty, there are several methods to create a remote connection to the My Cloud, all of them involve using SSH to modify or edit the My Cloud firmware to allow remote access connections. Do a form search using terms like: “remote access”
Here is one such unofficial method of remote access that allows one to remote map a Share which would then allow one to stream, limited by the upload speed of the My Cloud broadband connection, media at a remote location.
https://community.wd.com/t/app-clouddavmod-v1-0-for-firmware-v4-05-2016/161543
