Various 3D Models with an image target

I can not achieve this task, I have 6 different models that have the same target, but I want to see only one model at a time, say the one in position [i], since I am doing it with an array of GameObjects, then when selecting the next one with an arrow I have just seen the following model and the same thing happens with the back arrow, that I deployed the previous model.

Achieve visualize a model but as you go forward with the arrows the others are also on the screen, filling the 6 models. The code so far is the following:

using UnityEngine;
using Vuforia;
using System;
using System.Collections.Generic;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class MyDefaultTrackableEventHandler3: MonoBehaviour, ITrackableEventHandler {


  protected TrackableBehaviour mTrackableBehaviour;
  public int s_SelectedIndex;
  public GameObject[] players;

  protected virtual void Start() {

    players = GameObject.FindGameObjectsWithTag("Player");

    foreach(GameObject wi in players) {
      wi.SetActive(false);
    }
    mTrackableBehaviour = GetComponent < TrackableBehaviour > ();
    if (mTrackableBehaviour)
      mTrackableBehaviour.RegisterTrackableEventHandler(this);

  }

  protected virtual void OnDestroy() {
    if (mTrackableBehaviour)
      mTrackableBehaviour.UnregisterTrackableEventHandler(this);

  }


  public void OnTrackableStateChanged(TrackableBehaviour.Status previousStatus, TrackableBehaviour.Status newStatus) {

    if (newStatus == TrackableBehaviour.Status.DETECTED || newStatus == TrackableBehaviour.Status.TRACKED || newStatus == TrackableBehaviour.Status.EXTENDED_TRACKED) {
      Debug.Log("Trackable " + mTrackableBehaviour.TrackableName + " found");
      OnTrackingFound();

    } else if (previousStatus == TrackableBehaviour.Status.TRACKED && newStatus == TrackableBehaviour.Status.NO_POSE) {
      Debug.Log("Trackable " + mTrackableBehaviour.TrackableName + " lost");
      OnTrackingLost();
    } else {
      OnTrackingLost();
    }
  }


  public void Suma() {
    players[s_SelectedIndex].SetActive(false);
    s_SelectedIndex++;
    players[s_SelectedIndex].SetActive(true);
  } 

  public void Resta() {
    players[s_SelectedIndex].SetActive(false);
    s_SelectedIndex--;
    players[s_SelectedIndex].SetActive(true);
  }


  protected virtual void OnTrackingFound() {



    if (s_SelectedIndex < players.Length) {
      Debug.Log("Player Number " + s_SelectedIndex + " is named " + players[s_SelectedIndex].name);

      var rendererComponents = players[s_SelectedIndex].GetComponentsInChildren < Renderer > (true);
      var colliderComponents = GetComponentsInChildren < Collider > (true);
      var canvasComponents = GetComponentsInChildren < Canvas > (true);


      foreach(var component in rendererComponents)
      component.enabled = true;


      foreach(var component in colliderComponents)
      component.enabled = true;


      foreach(var component in canvasComponents)
      component.enabled = true;

    }


  }


  protected virtual void OnTrackingLost() {

    var rendererComponents = GetComponentsInChildren < Renderer > (true);
    var colliderComponents = GetComponentsInChildren < Collider > (true);
    var canvasComponents = GetComponentsInChildren < Canvas > (true);


    foreach(var component in rendererComponents)
    component.enabled = false;


    foreach(var component in colliderComponents)
    component.enabled = false;


    foreach(var component in canvasComponents)
    component.enabled = false;

  }

}