Thanks for reply.
I wasn’t so clear on the back pack issue. I got pulled away and could only get back to it now. I figured the tags were in the attribute section just by looking at it initially. I assumed that was where to edit it so I’d actually already did that earlier and it didn’t help. Thats the reason I opened the demo back pack and started comparing. In the demo one, there is no tag entered in the attributes tags either. I’m not sure why they’re behaving differently. The demo one doesn’t work properly with my character on its own either. Meaning it doesn’t run the hud event to open a new inventory window that represents the content. But at least the demo one equips properly. Gonna play with it a bit now. If you think of what might be it… shoot me a quick msg. If I figure it out now ill update this post.
http://thankstips.com/uploads/ue4/jcinventory/backpack2.png
As for the docs, I agree the videos are awesome. I personally am a very visual person in general. I hate manuals that have massive table of contents etc… I like guides though. The more complicated the system, the simpler the guide should be. Start to finish, basic working system that touches on all its functions. I prefer step by step(text) guides with some screenshots to videos or any other documentation. Mostly because I can work at my own pace and go back and search or check for things im not sure of. It’s easier to update and at the end of the day it’s a backbone for all support issues for reference. Kind of a “check in the meantime”. One guide that goes through those main points would be helpful. If you wanted videos for each section, you could follow your own guide and record as you do it 
But of course whatever you think is the most appealing to the community, you should do, I just dont want to bug you for things lol. Let you get to improving or creating new things.
kk… Onto to try and sort this backpack thing now.
EDIT: Seems the “item name” is required. I entered a random name and it now equips and plays nice with the other inventory items. That took like two mins to figure out. Just gotta figure out why its not opening when trying to use it.
EDIT 2: So this took me a bit longer to figure out (hour ish) but I finally got it. I stepped through the example. Needed BAG in the item tag (as mentioned in the video). But you ALSO must have the item name. Took me a bit of time to figure out where to put break points. The main issue that confused me so long was that even on the example there is no tag for the briefcase. So unless the tag gets set on begin play or something, I’m not sure how it works there, but when stepping thru the bag tag check ends up true even though the tag isn’t set. I was trying to mimic what worked but… hmmmm anyway… kinda messed myself up because I didn’t have the itemname but I did have the tag right initially. When that didn’t work, I removed the tag to make it look like the demo example, and added a name(like the demo example)… lol and went the long way around figuring out that I needed to put BAG back into the tag while itemname is set.
anyway… Good stuff. I like how the system is set up so far.