A method to rotate an object while it's has an align to spline tag


I have an object in my scene that has an align to spline tag. I have checked the tangential option to make sure that it’s oriented to the spline.
Now I want to animate the rotation of this object along the Y axis. However, I could not set key frames for the rotation neither the position any more.

Is there a way to achieve this intended result in cinema 4D differently ?
Or is there a trick or an expression the could help me make this possible ?
Thank you in advance.


Maybe try putting the object under a null, then applying the align tag to the null - now you can do anything you want to the child object