I can make the shader to
view render grass a little below than normal and stop any wind effects too.
But I have no idea how can I tell the shader to do that for Solstheim only but not for other places.
Edit: Now that I think about it, it is possible to make the grass grow in time. But shaders and scripts is a non-explored territory for me. And I'm not sure if MGE let's scripting ingame.fx. But it is not a far possibility. I will try to make a demonstration for Solstheim(only via shader).
Edit2: That kind of grow will only work for generic grass. Some other grass types won't take it nicely, I guess.
Edit3: I have code for making grass bend as PC walks over it(thanks to the ripples code developments), but the grass mesh is set in crosses and planes, which make each plane to bend in one distance making it look really bad. If grass was made of individual blades that could work greatly(not tested), but I think that can hurt performance greatly too.