VelsTools allows for mass application of an Aurora Trimesh modifier with the settings of your choice, right
here.
If the objects in question already have an Aurora Trimesh modifer on them, the modifiers will
stack, which you don't want. Please, take this with a grain of salt but what I've done in a similar situation is to select all the objects I want to perform this kind of operation on (which already have an existing Aurora Trimesh modifier on them that I don't want) and with them all selected, I apply an XForm modifier (
not Reset XForms in NWMax), then right click on on that XForm modifier in the stack and Collapse All, which will get me down to my bare Editable Meshes so I can mass apply the Aurora Trimesh modifier with VelsTools.
There are some limitations on how Rotate Texture is used, though, so you might want to consult the
Omnibus or at least do small-scale experiments to make sure it's doing what you think it should be doing. I also believe it will only work for one mesh per tile.