Sometimes there is a need to bring the entire character forward or back (Z axis) or left or right (X) or up or down (Y) by a specific number of units. It is easy enough when the character is static but when there is a lot of Transform animation already in place it becomes a bit of a pain because you need to adjust every keyframe one by one. It would be terrific to be able to adjust one of the coordinates for a group of keyframes at once.