Problems calling functions from Scriptable Objects

Hi there! I am working on an simple examining system. im pretty far right now and it works as i expected but i have one problem. if i click on an item in my inventory a prefab will instantiated with the examining object on it. i call the function on the Scriptable Object

 SlotScript.cs
 
 ........
   if (eventData.button == PointerEventData.InputButton.Right)
         {
             //UseItem();
             ExamineItem();
         }
 
     public void ExamineItem()
     {
         if (MyItem is IExaminable)
         {
             (MyItem as IExaminable).StartExamine();
         }
 
     }
 
     public void StopExamineItem()
     {
         if (MyItem is IExaminable)
         {
             (MyItem as IExaminable).StartExamine();
         }
     }

The calling of the function to examine the item works pretty well but i dont know how or where i could call the StopExamineItem() Function. ive tried several things now, but nothing works. the calliing functions are on the Scriptable Object: public class HealthHerb : Item, IUseable, IExaminable { [SerializeField] private int health;

     [SerializeField]
     private GameObject examiningObject;
 
     private GameObject gO;
     private Camera exaCam;
 
     public GameObject MyExaminingObject
     {
         get
         {
             return examiningObject;
         }
 
         set
         {
             examiningObject = value;
         }
     }
 
     //FOR TESTINGs
     public void StartExamine()
     {
         gO = Instantiate(MyExaminingObject);
         exaCam = gO.GetComponent<Camera>();
         exaCam.enabled = true;
         UIManager.MyInstance.inventory.alpha = 0;
         UIManager.MyInstance.ShowExamineUI();
     }
 
     public void StopExamine()
     {
         Debug.Log("Get in");
         UIManager.MyInstance.HideExamineUI();
         exaCam.enabled = false;
         Destroy(gO);
     }
 
     public void Use()
     {
         Remove();
     }

I know that the problem is that i dont click on this item in the inventory to call the closing but how can i do that? Or how do i do that to close or delete the prefab with keboard input?

Any idea or help?

THX