transform input field in editor window

How do I generate a transform input field in an editor window? This is just the helloworld example plus the input that I can't get to work:

 public class WallBuilder : EditorWindow
 {
     
     string myString = "Hello World";
     
      Object block;
      int blocksWide;
      int blocksTall;
     
     bool groupEnabled;
     bool myBool = true;
     float myFloat = 1.23f;
     
     // Add menu named "My Window" to the Window menu
     [MenuItem ("WallBuilder/WallBuilder")]
     static void Init ()
     {
         // Get existing open window or if none, make a new one:
         WallBuilder window = (WallBuilder)EditorWindow.GetWindow (typeof(WallBuilder));
     }
     
     void OnGUI ()
     {
         GUILayout.Label ("Base Settings", EditorStyles.boldLabel);
         myString = EditorGUILayout.TextField ("Text Field", myString);
         
         groupEnabled = EditorGUILayout.BeginToggleGroup ("Optional Settings", groupEnabled);
         myBool = EditorGUILayout.Toggle ("Toggle", myBool);
         myFloat = EditorGUILayout.Slider ("Slider", myFloat, -3, 3);
         EditorGUILayout.EndToggleGroup ();
         
         //block = EditorGUILayout.ObjectField(block, Object);
     }
 }