Question Add text mesh pro text input UI in inspector

I am trying to find a way to add text mesh pro-Text Input box inside a function. Such that when this function is referenced to a button, a text mesh-Text Input box appears where I can easily add texts. My motive is to display the whole text input when referenced to a button.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using TMPro;
4. using UnityEngine;
5.  
6. public class ReferenceTextMeshPro : MonoBehaviour {
7.  
8.     public TextMeshProUGUI textObj;
9.  
10.     public void ReferencedText (TextMeshProUGUI textName) {
11.         textObj.text = textName.text;
12.     }
13. }

 

same