Update

Assets/Scripts/Player/Generic/Utils/Editor/vSelectableStringDrawer.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+namespace Invector.Utils
+{
+    [CustomPropertyDrawer(typeof(vSelectableStringAttribute))]
+    public class vSelectableStringDrawer : DecoratorDrawer
+    {
+        GUIStyle _selectableAreaStyle;
+        public GUIStyle SelectableAreaStyle
+        {
+            get
+            {
+                if(_selectableAreaStyle==null)
+                {
+                    _selectableAreaStyle = new GUIStyle(EditorStyles.textArea);
+                }
+                return _selectableAreaStyle;
+            }
+
+        }
+        vSelectableStringAttribute selectableString
+        {
+            get { return ((vSelectableStringAttribute)attribute); }
+        }
+
+        public override float GetHeight()
+        {
+            float height =  SelectableAreaStyle.CalcSize(new GUIContent(selectableString.selectableText)).y;
+            return height + EditorGUIUtility.singleLineHeight+8;
+        }
+        public override void OnGUI(Rect position)
+        {
+            var rect = position;
+            rect.height = EditorGUIUtility.singleLineHeight;            
+            GUI.Label(rect, selectableString.tittle);
+            var textArea = rect;
+            textArea.y += rect.height+5;
+            textArea.height = (position.height - rect.height)-10;
+            GUI.TextArea(textArea, selectableString.selectableText);
+        }
+    }
+}