This video is about creating a Diablo 2 Skill Tree Style UI, in Unreal 5.4 Blueprints.
We start by creating the Skill Tree Button Widget Blueprint which includes some Instance Editable variables for Skill Tree Functionality (In the following video). We follow that up by creating the Skill Tree Widget Blueprint, which includes Skill Tree Buttons and some other Controls, with the Skill Id, Pre Requisite Ids and other Button Variables initialized.
https://dev.epicgames.com/community/learning/tutorials/vwkR/unreal-engine-creating-character-progression-trees-diablo-2-skill-tree-style-ui-in-unreal-5-4