Hi key-direction,
There are two methods to do so. Both are in the file below.
Screenshot 2024-11-26 at 8.38.42 PM.jpg
The one with the XPresso style nodes is based on using a C4D Shader and adjusting the orientation with a slider.
The newer nodes do not have an angle parameter; if one likes to rotate the Ramp, the UV polygons need a spin. Which means it works only with Polygon objects.
However, the setup shows this is possible with several UV tags. However, if there are many Ramps on the object, they can also share one UV Tag, which keeps their rotation in sync.
All the best