Fireflies...

I have these little glowing things that resemble fireflies… sorta… but anyway I want to give it sort of an organic path, but it just takes way to long to do it in unity’s animation thing. Is there a way to be able to just draw points onto the editor? Or at least let me set a point and my firefly flies from point to point?

using UnityEngine;
using System.Collections;

public class Wander : MonoBehaviour
{
    public float speed = 4.0f;
	
	private Vector3 turn = new Vector3(0, 0, 0);

	void Start()
	{
		
	}
	
    void Update()
    {
		turn += Random.onUnitSphere * 0.7f * Time.deltaTime;
		turn.Normalize();
    	transform.forward += turn;
		transform.forward.Normalize();
		
		transform.position += transform.forward * Time.deltaTime * speed;
    }
}