In SpeedTree Modeller I create several variations of the same tree. The only thing I do is clicking the randomize button and save the tree under a different name. After this I import the model in the Unreal Editor and with each import every material also gets imported again. The only thing different is the shape of the mesh; the rest of the materials/textures/normal maps are all the same. Is there a way for the Unreal Editor (or SpeedTree modeller) to recognize they are the same so the won’t get importing again?