In this tutorial, you’ll learn how to create a user interface in Unreal Engine. We’ll cover the essentials, including making a widget, adding a button, and creating a health bar. By the end of this guide, you’ll have a functional UI that enhances the player experience in your project.
https://dev.epicgames.com/community/learning/tutorials/5JjM/unreal-engine-in-development-introduction-to-user-interface