How to make when object is pressed, object2 does something?

I have a script applied to object and when itself is clicked, it goes invisible. But then when an object next to it have it clicked, it reappears, our maybe a button when its clicked it reappears. Is it possible? this script is component of the disappearing GameObject.

 using UnityEngine;
 using System.Collections;
 
 public class Inviisble : MonoBehaviour {
 
     void Start () {
     }
     void Update () {
     }
     void OnMouseDown(){
         GetComponent<Renderer>().enabled = false;
     }
 
     GameObject gos = GameObject.FindGameObjectsWithTag("Sphere");
     void OnMouseDown(gos){
         GetComponent<Renderer>().enabled = true;
     }
 }
 

this is what i have in gameobject when its clicked, disappears.

Edit: Actually I have a GUI button on top left of the screen and it would be better if the button is clicked, reappear Object?