UMG Tree View

Have a look here for details:
https://forums.unrealengine.com/community/community-content-tools-and-tutorials/1595437-listview-getting-started-in-bp

There’s little info on it as it’s a relatively new (?) feature. I personally do not like the tut above, it’s truly convoluted but that’s the only one that I know of. We were trying to crack it earlier last year:

I got it to work with a Primary Data Asset in pure BPs but eventually reverted back to c++. It’s pretty nifty and performant to boot.