simple Unity inpector GUI element for a value and a random offset in a single range slider

EditorHelper.cs

#if UNITY_EDITOR
using UnityEngine;
using UnityEditor;

public class EditorHelper
{
    public static GUILayoutOption[] __buttonOptions = new GUILayoutOption[] { GUILayout.Width(120f), GUILayout.ExpandWidth(false) };

    public static void RandomRangeSlider(string propertyName, ref float val, ref float rand, ref bool randomEnabled, float min, float max, float resetValue)
    {
        EditorGUILayout.BeginHorizontal();
        
        #region VALUE
        if (GUILayout.Button(propertyName + val.ToString("0.00"), __buttonOptions))
        {
            val = resetValue;
        }

        val = EditorGUILayout.Slider(val, min, max, GUILayout.ExpandWidth(false));
        #endregion

        GUILayout.Space(30f);
        
        #region RANDOM OFFSET
        if (randomEnabled == false)
            GUI.enabled = false;

        if (GUILayout.Button("Rand." + rand.ToString("0.00"), __buttonOptions))
        {
            rand = resetValue;
        }
        rand = EditorGUILayout.Slider(rand, -80f, 0f, GUILayout.ExpandWidth(false));

        GUI.enabled = true;
        #endregion

        EditorGUILayout.EndHorizontal();
        GUILayout.Space(5f);
        EditorGUILayout.BeginHorizontal();

        #region RANGE SLIDER
        // Random Toggle
        randomEnabled = EditorGUILayout.Toggle(randomEnabled, GUILayout.MaxWidth(50f));

        // make the random setting relative to the main value
        rand += val;
        EditorGUILayout.MinMaxSlider(ref rand, ref val, min, max);
        rand -= val;
        #endregion

        EditorGUILayout.EndHorizontal();
    }
}
#endif

can been seen in action here: https://twitter.com/chtammik/status/921225953312780288

Thanks!