Question Expand GUI

Hello, I have this code to put two TextField, when clicking on the Toogle:

Code (CSharp):

1.  public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
2.     {
3.         EditorGUI.BeginProperty(position, label, property);
4.  
5.         Rect rectFoldout = new Rect(position.min.x, position.min.y, position.size.x,
6.                                         EditorGUIUtility.singleLineHeight);
7.  
8.         checkBoxValue = EditorGUI.Toggle(position, label, checkBoxValue);
9.         int lines = 1;
10.         if (checkBoxValue)
11.         {
12.             Rect rectField1 = new Rect(position.min.x, position.min.y + lines++ * EditorGUIUtility.singleLineHeight, position.size.x, EditorGUIUtility.singleLineHeight);        
13.             EditorGUI.TextField(rectField1,"Paso 1", objNames);
14.             Rect rectField2 = new Rect(position.min.x, position.min.y + lines++ * EditorGUIUtility.singleLineHeight, position.size.x, EditorGUIUtility.singleLineHeight);
15.             EditorGUI.TextField(rectField2, "Paso 2", objNames);
16.         }
17.         EditorGUI.EndProperty();
18.     }

My question is, how could I lower the position of what I have below in the editor?



Thanks.