Hey ho here 
I have been quite busy with my work and I have also been crushing my head on the diablo-like inventory.
With all the UMG / Drag & Drop changes in the 4.8 release I will try to take the time to open my project again and finally get through it.
I actually made a serie of tutorials about opening / joining multiplayer lobbies. That might not be interesting to you since it’s not directly related to the Hack n Slash template. I was planning at start to make tutorials about this template but my work is getting more and more of my time. I have some free time this month so I’m cleaning up the dust on this project but no tutorial planned so far.
I can share what I have so far with pleasure. Will I release it in the future? I’m really not sure about it.