Model Previews as icons in UGM UI

Okay so I started using Unreal Engine yesterday and I got over an inventory tutorial.
The inventory system uses pre-made and pre-defined icon’s for each item (actor) that player has in its inventory.
What I want to do is to replace all those pre-defined 2D icons to 3D model previews of the item. Similiar stuff is done in games like DayZ Standalone where the inventory items’ pictures aren’t icons but 3d model preview of the item.

Can anyone please point me how to achieve this?

If this question was already asked I am sincerely sorry - I searched it to the best of my abilities and didn’t find an answer.