In Postview, there is only mesh no geometry. So when we want to select a surface, we can only select only one surface of a single mesh. Is there any method to select a real geometry surface? I am doing a displacement control tension test and want to konw the pulling force (no rigid body to get rigid body force). So I want to do a integral to caculate the pulling force, but it is almost impossible to select surfaces of elements due to a big model.