Edit one element in Vector3 array

So I’m making a script where a character follows a line that is drawn through the linerenderer. To store the “waypoint” positions, I made a vector3 array. But the problem I’m having is, when I’m editing the values of the array in a for loop, instead of editing just the last element it’s editing all of them.

Here’s the code I’m having trouble with:

public class lineDraw : MonoBehaviour {
	public LineRenderer lineRender;
	public Transform origin;
	int numberOfPoints;
	Vector3 mousePos;	
	public Vector3[] waypointPlace;
	// Use this for initialization
	void Start () {

	}
	
	// Update is called once per frame
	void Update () {
		waypointPlace = new Vector3[numberOfPoints];

		if(Input.GetKey(KeyCode.Mouse0)) {
			numberOfPoints++;
			lineRender.SetVertexCount(numberOfPoints);
			Vector3 mousePos = new Vector3(0,0,0);
			mousePos = Input.mousePosition;
			mousePos.z = 1.0f;
			Vector3 worldPos = Camera.main.ScreenToWorldPoint(mousePos);
			lineRender.SetPosition(numberOfPoints - 1, worldPos);

			//add mouseposition to array
			for (int i = 0; i < waypointPlace.Length; i++){
				waypointPlace *= new Vector3 (mousePos.x,mousePos.y,mousePos.z);*
  •  	}*
    
  •  }*
    
  •  if(Input.GetKeyUp(KeyCode.Mouse0)) {*
    
  •  	lineRender.SetVertexCount(0);*
    
  •  	numberOfPoints = 0;*
    
  •  }*
    
  • }*
    }

In this picture you can see that all the elements have the same value, and I’m wondering what I’m doing wrong
![alt text][1]
[1]: http://i.imgur.com/5r84biz.png

Well a for loop is going to iterate through every element then run the code.
If you just want to edit the last element in array remove your loop and use:

waypointPlace[waypointPlace.length-1] = new Vector3 (mousePos.x,mousePos.y,mousePos.z);