Improve usability and clarity of key features in Unity Editor for better workflow!

This Toolbox not only extends functionalities, it does so with the user in mind. Written to be as flexible and optimized as possible. Now you and other programming professionals will be able to create a readable and useful component editor simply by using attributes. You’ll get fast and clear access to data from GameObjects placed in the Scene. Lastly, you’ll gain more control over the Project window. Go ahead, customize those folder icons.

It's worth to mention that prepared drawers are based on the custom, layout-based system. Additionally, I’m leaving you some useful scripts, classes, and functions that facilitate Editor extensions development.

Learn all the details about the main features below.

Unity 2018.x or newer

EditorCoroutines

• Install Editor Toolbox package:
  • 1 way: Find Unity Package Manager (Window/Package Manager) and add package using this git URL:

   https://github.com/arimger/Unity-Editor-Toolbox.git#upm
  

  • 2 way: Copy and paste Editor Toolbox directory into your project (Assets/...) + add dependencies
• Open Edit/Project Settings/Editor Toolbox window
• If settings file is not found, press "Refresh" button or create new one
• Manage settings in your way
  • Enable/disable Hierarchy overlay, choose allowed information
  • Enable/disable Project icons or/and assign own directories
  • Enable/disable Toolbox drawers or/and assign custom drawers

• Attributes & Drawers
  • Regular Drawers
  • Toolbox Drawers
• Reorderable List
• Serialized Types
• Editor Extensions
  • Hierarchy
  • Project
  • Toolbar
• Editor Extras

The most important file, it allows the user to manage all available features. Can be accessed from the Project Settings window (Edit/Project Settings.../Editor Toolbox) or directly inside the Project window. Make sure to have one valid settings file per project.

Available features are divided into three groups:

• Hierarchy
• Project
• Inspector

Each module is described in its respective section.

Drawers based on build-in classes PropertyDrawer/DecoratorDrawer and associated PropertyAttribute.

Editor Toolbox/Scripts/Attributes/
Editor Toolbox/Editor/Drawers/

[TagSelector]
public string var1;

[ProgressBar("Name", minValue: 0.0f, maxValue: 100.0f, HexColor = "#EB7D34")]
public float var1 = 80.0f;

[NewLabel("Custom Label", "Element")]
public int[] vars1 = new int[3];
[NewLabel("Custom Label")]
public float var2 = 25.4f;

[MinMaxSlider(0.5f, 71.7f)]
public Vector2 var1;

[AssetPreview]
public GameObject var1;
[AssetPreview(useLabel: false)]
public Component var2;

[System.Flags]
public enum FlagExample
{
	Nothing = 0,
	Flag1 = 1,
	Flag2 = 2,
	Flag3 = 4,
	Flag4 = 8,
	Flag5 = 16,
	Flag6 = 32,
	Flag7 = 64,
	Flag8 = 128,
	Flag9 = 256,
	Everything = ~0
}

[EnumFlag]
public FlagExample enumFlag = FlagExample.Flag1 | FlagExample.Flag2 | FlagExample.Flag6;

[EnumFlag(EnumStyle.Button)]
public FlagExample enumFlag = FlagExample.Flag1 | FlagExample.Flag2 | FlagExample.Flag6;

private readonly int[] presetValues = new[] { 1, 2, 3, 4, 5 };

[Preset(nameof(presetValues))]
public int presetTarget;

[SearchableEnum]
public KeyCode enumSearch;

[Clamp(minValue = 1.5f, maxValue = 11.3f)]
public double var1;

[Password]
public string password;

[System.Serializable]
public class SampleClass1
{
	public Material var1;
	public KeyCode var2;
	public SampleClass2 var3;
}

[System.Serializable]
public class SampleClass2
{
	public int var1;
	public string var2;
}

[LabelByChild("var2")]
public SampleClass1[] vars1;
[LabelByChild("var3.var2")]
public SampleClass1 var1;

Drawers are based on classes inherited from the ToolboxDrawer class and associated ToolboxAttribute. With this powerful custom system you are able to create really flexible drawers. You can use them without limitations (they work with sub-classes and as array children). Every ToolboxDrawer is layout-based. For proper work they need at least one settings file located in your project. You can find predefined one here - Editor Toolbox/EditorSettings.asset.

Examples 'How to' create custom ToolboxDrawers you can find HERE.

Editor Toolbox/Scripts/Attributes/ToolboxAttributes
Editor Toolbox/Editor/Drawers/ToolboxDrawers

Display/create something before and after property in the desired order (using Order property).
In fact ToolboxDecoratorDrawers are like extended version of built-in DecoratorDrawers. Unfortunately, standard decorators won't always work with ToolboxDrawers so try to use this replacement instead.

[BeginGroup("Group1")]
public int var1;
public int var2;
public int var3;
[EndGroup]
public int var4;

[BeginHorizontal]
public int var1;
public int var2;
[EndHorizontal]
public int var3;

[BeginIndent]
public int var1;
public int var2;
public int var3;
[EndIndent]
public int var4;

[IndentArea(4)]
public int var5;

[SpaceArea(spaceBefore = 10.0f, spaceAfter = 5.0f, Order = 1)]
public int var1;

[Label("My Custom Header", skinStyle: SkinStyle.Box, Alignment = TextAnchor.MiddleCenter)]
public int var1;

[EditorButton(nameof(MyMethod), "<b>My</b> Custom Label", activityType: ButtonActivityType.OnPlayMode)]
public int var1;

private void MyMethod()
{
	Debug.Log("MyMethod is invoked");
}

[Highlight(0, 1, 0)]
public int var1;

[Help("Help information", UnityMessageType.Warning, Order = -1)]
public int var1;

[ImageArea("https://img.itch.zone/aW1nLzE5Mjc3NzUucG5n/original/Viawjm.png", 150.0f)]
public int var1;

Enable/disable or show/hide properties using custom conditions. You can use them together with any other type of drawer. Every ToolboxConditionDrawer supports boolean, int, string and enum types and works even with array/list properties.

public string stringValue = "sho";
[ShowIf(nameof(stringValue), "show")] //or HideIfAttribute
public int var1;

public KeyCode enumValue = KeyCode.A;
[EnableIf(nameof(enumValue), KeyCode.A)] //or DisableIfAttribute
public int var1;

[DisableInPlayMode]
public int var1;

[Disable, ReorderableList]
public int[] vars1 = new [] { 1, 2, 3, 4 };

This attribute gives a great possibility to extend all reference-related (UnityEngine.Object) fields. Using it you are able to 'inline' Editors for: components, ScriptableObjects, Materials, Renderers, MeshFilters, Textures, AudioClips, etc.

[InLineEditor]
public Transform var1;

[InLineEditor]
public AudioClip var1;

[InLineEditor(true, true)]
public Material var1;

It's a perfect solution to inspect large arrays/lists and optimize displaying them within the Inspector window.

[ScrollableItems(defaultMinIndex: 0, defaultMaxIndex: 5)]
public GameObject[] largeArray = new GameObject[19];

Custom implementation of standard ReorderableList (UnityEditorInternal). Usable as an attribute in serialized fields or a single object in custom Editors.

Editor Toolbox/Editor/Internal/ReorderableList.cs

var list = new ReorderableList(SerializedProperty property, string elementLabel, bool draggable, bool hasHeader, bool fixedSize);

[ReorderableList, InLineEditor]
public Canvas[] vars1;

[ReorderableList(ListStyle.Lined, "Item")]
public List<int> linedStyleList;

[ReorderableList(ListStyle.Round)]
public List<string> standardStyleList;

[ReorderableList(ListStyle.Boxed, fixedSize: true)]
public GameObject[] boxedStyleList = new GameObject[4];

Allows to serialize Types and pick them through a dedicated picker.

[ClassExtends(typeof(Collider))] //or [ClassImplements(typeof(interface))] for interfaces
public SerializedType var1;

public void Usage()
{
	var type = var1.Type;
}

Allows to serialize SceneAssets and use them in Runtime.

public SerializedScene scene;

public void Usage()
{
	UnityEngine.SceneManagement.SceneManager.LoadScene(scene.BuildIndex);
}

Allows to serialize and use Dictionaries. The presented class implements the IDictionary interface, so it can be easily used like the standard version.

Requires at least Unity 2020.1.x because of generic serialization and has to be assigned in the Settings file.

#if UNITY_2020_1_OR_NEWER
public SerializedDictionary<int, GameObject> dictionary;

public void Usage()
{
	dictionary.Add(3, new GameObject("TestObject"));
	dictionary.ContainsKey(2);
	//etc. like standard System.Collections.Generic.Dictionary<>
	var nativeDictionary = dictionary.BuiltNativeDictionary();
}
#endif

Enable and customize the presented hierarchy overlay in the ToolboxEditorSettings. Basically it provides more data about particular GameObjects directly within the Hierarchy window. Additionally, you can create special 'Header' objects using the '#h' prefix or Create menu: GameObject/Editor Toolbox/Hierarchy Header (by default created object will have EditorOnly tag).

Each row can contain:

• Scripts information
• Layer
• Tag
• Toggle to enable/disable GameObject
• Icon

Editor Toolbox/Editor/ToolboxEditorHierarchy.cs

Set custom folder icons in the ToolboxEditorSettings.

Properties that can be edited include:

• XY position and scale of the large icon
• XY position and scale of the small icon
• Path to directory or name (depends on picked item type)
• Optional tooltip
• Large icon
• Small icon

Editor Toolbox/Editor/ToolboxEditorProject.cs

Editor Toolbox/Editor/ToolboxEditorToolbar.cs

Check Examples for more details.

Examples/Editor/SampleToolbar.cs

using Toolbox.Editor;

[UnityEditor.InitializeOnLoad]
public static class MyEditorUtility
{
	static MyEditorUtility()
	{
		ToolboxEditorToolbar.OnToolbarGui += OnToolbarGui;
	}
	
	private static void OnToolbarGui()
	{
		GUILayout.FlexibleSpace();
		if (GUILayout.Button("1", Style.commandLeftStyle))
		{
			Debug.Log("1");
		}
		if (GUILayout.Button("2", Style.commandMidStyle))
		{
			Debug.Log("2");
		}
		if (GUILayout.Button("3", Style.commandMidStyle))
		{
			Debug.Log("3");
		}
		if (GUILayout.Button("4", Style.commandMidStyle))
		{
			Debug.Log("4");
		}
		if (GUILayout.Button("5", Style.commandRightStyle))
		{
			Debug.Log("5");
		}
	}
}

Copy and paste all components from/to particular GameObject.

I decieded to move additional editors and tools to Gist.

Check it out HERE.