Well,
I found the solution to move the textures with the built in cube in the Wiki:
https://planetside.co.uk/wiki/index.php?title=SphereUnder the "Rotate" paragraph the procedure is described.
You have to use a "Transform input shader" after Textures and / or Displacements
and move them the same amount as the cube object in y. If you rotate the cube in
x and z then you have to do the rotation in the transform as well.
In the case of using the "Altitude Min-Max" settings in the "Surface Layer" you
have to subtract or add depending from the amount of translation in the "Transform input".
The cube object is animated and the "Transform input" in y as well.
Scene file, screenshot and animation attached.
Not ideal but also not too much hazzle for only a few objects, I guess.
CHeers, Klaus