Custom Grass/Wind/Winzone/shader

So i couldn't find anything answering this, close... but not answering and I've been looking for about an hour before finally deciding to ask a question.

So i have my own custom mesh in unity, a bunch of planes with LOD being used on it. I cant paint it as a mesh in the details mesh section because it doesn't look the quality i want. So it paints on as a tree fine and runs with a low impact on my cpu/gpu and look ok.... my problem is that they aren't affected by wind zones. I want a wind zone to push the mesh around a bit so i can add displacement when a player walks over the grass/places an item or building piece onto the ground. I have looked into some of Forst's assets for something but the closest i have found was one where the wind is pre-set but not effected by wind zones i believe it was vertex lit or something.... the "bend" option is also not available in the tree painting section.... Any ideas? Or a link to a shader?

Thanks...