I would gladly see something like Move to Target, but you should be able to pick certain axis. Right now you can only turn off vertical i think.
It should work like this script:
transform.position.z = Mathf.Lerp(transform.position.z, target.position.z, 0.5);
transform.position.y = Mathf.Lerp(transform.position.y, target.position.y, 0.5);
Basic use would be doing a camera follow a character in 2D sidescroller for example, but only in certain axis, with slight delay, without rotation.