This video covers the basics of adding movement to your environments. We go through the process of creating a fan that rotates and can be changed with a variable on each individual instance. This type of movement can be a really nice detail for your environments especially if you plan on recording video flythroughs and want it to feel more immersive!
https://dev.epicgames.com/community/learning/tutorials/wa5m/how-to-add-movement-to-your-environments-in-unreal-engine-5