Streaming over Internet WD mycloud

I have been using Infuse over LAN for years now - totally love it. Now I’m ready for the next big step - streaming my files over the internet (WAN). I have a WD mycloud and would like to get the help of this wonderful community to set it and Infuse up properly. Of course I started with Internet research for this topic but was not successful in figuering it out.
Could you please help me with the following:
What do I need to set on my WD mycloud?
How do I need to configure Infuse

Thanks so much in advance!!