Hey Ovr,
There are two separate locations where you can learn more about this project. We have a YouTube video series (version 4.8 and up) that provides a hefty amount of information about Wes Bunn’s Tutorial for Inventory UI with UMG. Here is a link to that series: https://www.youtube.com/watch?v=r4tltrLLVuQ&list=PLZlv_N0_O1gZalvQWYs8sc7RP_-8eSr3i
Also, on the Unreal Launcher, we have the project available for you to download. Once you open the Launcher, navigate to the Learn tab on the Left of the window. Once this is selected, look for the “Gameplay Concept Examples” Section (this section is about halfway down the page). You should be able to see the Inventory UI with UMG examples created by Wes. Once clicked on, there is a version drop down on the right of the Launcher window and you should be able to select 4.9 from this dropdown. All you would have to do is download and should be good to go.
If you are unable to see this version or having any issues, please let me know so that we can get this issue sorted out.
Thanks and have a great day!