EditorGUI.indentLevel

Description

The indent level of the field labels.

EditorGUILayout.LabelField will display the string given as an argument. This string can be displayed at a horizontal position, and the position changed by indentLevel. As indentLevel increases the labels will move right. Decreasing indentLevel will move labels to the left.

Shows info of the selected object.

// Shows info of the selected transform

class EditorGUIIndent extends EditorWindow {

    @MenuItem("Examples/Indent usage")
    static function Init() {
        var window = GetWindow(EditorGUIIndent);
        window.position = Rect(0, 0, 100, 100);
        window.Show();
    }

    function OnGUI() {
        var obj = Selection.activeTransform;
        EditorGUILayout.LabelField("Name:", obj ? obj.name : "Select an Object");
        if(obj) {
            // Indent block more
            EditorGUI.indentLevel++;
            EditorGUILayout.LabelField("Position:", obj.position.ToString());
            EditorGUILayout.LabelField("Rotation:", obj.rotation.eulerAngles.ToString());
            // Indent inner block even more
            EditorGUI.indentLevel++;
            EditorGUILayout.LabelField("X:", obj.rotation.x.ToString());
            EditorGUILayout.LabelField("Y:", obj.rotation.y.ToString());
            EditorGUILayout.LabelField("Z:", obj.rotation.z.ToString());
            EditorGUILayout.LabelField("W:", obj.rotation.w.ToString());
            // End of inner block
            EditorGUI.indentLevel--;
            EditorGUILayout.LabelField("Scale:", obj.localScale.ToString());
            // End of block
            EditorGUI.indentLevel--;
        }
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

public class EditorGUIIndent : EditorWindow
{
    [MenuItem("Examples/indentLevel demo")]
    static void Init()
    {
        EditorWindow window = GetWindow(typeof(EditorGUIIndent));
        window.position = new Rect(100, 100, 300, 150);
        window.Show();
    }

    void OnGUI()
    {
        Transform obj = Selection.activeTransform;
        EditorGUILayout.LabelField("Name:", obj ? obj.name : "Select an Object");

        if (obj)
        {
            // Indent further the area of position and rotation
            EditorGUI.indentLevel++;
            EditorGUILayout.LabelField("Position:", obj.position.ToString());
            EditorGUILayout.LabelField("Rotation:", obj.rotation.eulerAngles.ToString());

            // Indent further again the area of rotation values
            EditorGUI.indentLevel++;
            EditorGUILayout.LabelField("X:", obj.rotation.x.ToString());
            EditorGUILayout.LabelField("Y:", obj.rotation.y.ToString());
            EditorGUILayout.LabelField("Z:", obj.rotation.z.ToString());
            EditorGUILayout.LabelField("W:", obj.rotation.w.ToString());

            // End of inner area
            EditorGUI.indentLevel--;
            EditorGUILayout.LabelField("Scale:", obj.localScale.ToString());

            // End of area
            EditorGUI.indentLevel--;
        }
    }
}

To maximize future compatibility, do not make assumptions about what a specific indent level means, but instead just increase or decrease by one around blocks of controls that need to be more indented, as in the example above.