stop an elevator

I have been monkeying around with the Stealth tutorial which ends with an elevator going up as the scene fades out. I commented out the scene ending stuff to see what happens and the elevator just keeps going. I have been all over the web trying to find a way to have it stop s o i can continue adding to the scene I built with the tutorial. None of the script functions I have found work. At best it snapped the elevator to that position and any script I came across with .Lerp in it unity told me it didn't exist or some such error. I simply want the elevator to stop after goinp up 4 floors so whatever that translates to in unity units ( a player is 2 so 8 or 10? ) anyway. move the elevator slowly ( like it is) but stop and unparent the player so I can get off. I don't know if you need the entire code but here is the part that I have been playing with at the end. I am having lots of fun with this but am stuck ( I managed to modify the enemyAttack script and apply to a health powerup).oh, as you can see I also commented out the camera movement being false so I could still follow the player ( as he snaps to a new location as it currently exists)

void LiftActivation () { // Increment the timer by the amount of time since the last frame. timer += Time.deltaTime;

     // If the timer is greater than the amount of time before the lift should start...
     if(timer >= timeToLiftStart)
     {
         // ... stop the player and the camera moving and parent the player to the lift.
         playerAnim.SetFloat(hash.speedFloat,0f);
         //camMovement.enabled = false;
         player.transform.parent = transform;
         
         // Move the lift upwards.
         //transform.Translate(Vector3.up * liftSpeed * Time.deltaTime);

         
         // If the audio clip isn't playing...
         if(!audio.isPlaying)
             // ... play the clip.
             audio.Play();
         
         // If the timer is greater than the amount of time before the level should end...
         //if(timer >= timeToEndLevel)
             // ... call the EndScene function.
         //    sceneFadeInOut.EndScene();
     }
 }

}