This tutorial shows how to work with UV Maps in Unreal Engine. You will learn how to scale and rotate UV maps in Unreal Engine 5.5. The final render was done in Unreal Engine.
Rotate
I open the material I want to rotate
I right-click and add a Custom Rotator node
I connect the Rotated Values to the UVs input of the textures
I then right-click and add a Texture Coordinate node
I connect this node to the UVs of the Custom Rotator
I hold down the 1-key and left-click to add a Vector node
I connect this node to the Rotation Angle
In the Details panel, I change the Value to 0.25 since I only want to rotate the textures 90-degrees
Scale
I can access the UV Editor under the Modeling Mode
I select Project UVs
I will use the Box for the Projection Type
If I had a flat plane for example, I would change this to Plane and if I had a cylindrical object, I would change this to Cylinder
Now all I need to do is change the dimensions
Once I have the dimensions looking correct, I can click on Accept
Just be aware, if you have only one UV, everything will change to these same transforms
If you want a tutorial on using UDIMs in Unreal Engine 5, let me know in the comments