i have an issue with scaling lately in 3ds max design 2015. i want to basically scale something one the z axis, BUT i only want it to go in the positive direction. when i scale uniformly (i've actually tried with all scale tools), it goes an equal distance in both the positive and negative directions. is there a way to fix this so it only goes either just in the positive direction or just in the negative direction? any help/insight is greatly appreciated. thanks!