This video is about updating Player Stats when the Web Tree Buttons are pressed, using an Event Dispatcher, in Unreal 5.4 Blueprints.
We start by adding some Integer Variables to the First Person Character Blueprint, which could also have been GAS Attributes or any other type. We then Update the Web Tree Widget to show the Player Variables, and add an Event Dispatcher which sends along Button Info when a Button level is upgraded. In the First Person Character Blueprint, we Bind a Function to the Event Dispatcher just created, and use that to update the Variables and tell the Web Tree to Update.
https://dev.epicgames.com/community/learning/tutorials/vjrZ/unreal-engine-creating-character-progression-trees-data-driven-web-style-functionality-in-unreal-5-4