Changing Tags of Multiple objects?

Is there a way to select several objects in hierarchy and change all of their tags based on your choice in the inspector? It seems to currently only affect the first one clicked...annoying as I have about 60 different objects that I want to change from Untagged to Tag"X".

Thanks!

 

There isn't a way to do it directly from the editor, but you could place the attached editor script in the Editor folder. The menu item comes up under the GameObject menu as Mass Set Tags.

 

Thank you, andeeee! I had hundreds of objects to tag and was about to hire one of my kids to do it! This is great!

 

I can't get this to work in Unity 3, I select all of the objects then when I go to Mass Set Tags, it gives me 2 errors:

Instance of TagNameWindow couldn't be created because there is no script with that name.
UnityEditor.EditorWindow:GetWindow(Type)
TagNameWindow:Init() (at Assets/Editor/tagnamewindow_129.js:6)

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.EditorWindow.GetWindow (System.Type t, Boolean utility, System.String title, Boolean focus)
UnityEditor.EditorWindow.GetWindow (System.Type t)
TagNameWindow.Init () (at Assets/Editor/tagnamewindow_129.js:6)

 

You just need to rename the file to TagNameWindow.js. Unfortunately, the forum software sometimes mangles filenames when they are uploaded :-(

 

It's still giving me the errors:

Instance of TagNameWindow couldn't be created because there is no script with that name.
UnityEditor.EditorWindow:GetWindow(Type)
TagNameWindow:Init() (at Assets/Editor/tagnamewindow.js:6)

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.EditorWindow.GetWindow (System.Type t, Boolean utility, System.String title, Boolean focus)
UnityEditor.EditorWindow.GetWindow (System.Type t)
TagNameWindow.Init () (at Assets/Editor/tagnamewindow.js:6)

 

Still having this issue, any fix available?

 

As stated earlier, you have to rename the file. Your error shows how you currently have it named in all lowercase. You have the file named as tagnamewindow. Unity is case sensitive. You need to rename the file in unity as TagNameWindow. This is called camel case (FYI) and is pretty standard naming for scripts/code.

 

OMG this was helpful. Thank you!

Can this be easily modified to apply a script to multiple objects?

 

That was helpful!!

I´ve changed the code if you want to also change objects layer names:

Code (csharp):

1. class TagNameWindow extends EditorWindow {
2.  
3.     @MenuItem("GameObject/Mass Set Tags")
4.     static function Init () {
5.         // Get existing open window or if none, make a new one:
6.         var window : TagNameWindow = EditorWindow.GetWindow (TagNameWindow);
7.         window.Show ();
8.     }
9.    
10.     var tag: String;
11.     var layer: int;
12.    
13.     function OnGUI () {
14.         tag = EditorGUILayout.TagField("Tag name", tag);
15.         layer = EditorGUILayout.LayerField("Layer", layer);
16.  
17.         if (GUILayout.Button("Apply")) {
18.             Undo.RegisterSceneUndo("Mass Set Tags");
19.  
20.             for (var obj : GameObject in Selection.gameObjects) {
21.                 obj.tag = tag;
22.                 obj.layer = layer;
23.             }
24.         }
25.     }
26. }

 

Superb, just saved me hours of work! Thank you very much andeeee!

 

Remember that you must put all editor scripts inside Assets/Editor folder. If it doesn't exist, create one and put your script inside there.

 

This was useful; thanks Andeeee for the idea and tutibueno for the augmentation. Let's go the whole nine yards by distiguishing layers and tags separately, and applying them to children recursively:

Code (csharp):

1.  
2. class TagNameWindow extends EditorWindow{
3.     @MenuItem("GameObject/Set Tags and Layers")
4.     static function Init(){
5.         var window:TagNameWindow=EditorWindow.GetWindow(TagNameWindow);//Get existing open window or, if none, make a new one.
6.         window.Show();
7.     }
8.     var tag:String;
9.     var layer:int;
10.     var tagKindern:boolean=false;
11.     var layerKindern:boolean=false;
12.     function OnGUI(){
13.         var queue:Array;
14.         var parent:Transform;
15.         EditorGUIUtility.LookLikeControls(150);
16.         tag=EditorGUILayout.TagField("Tag name",tag);
17.         tagKindern=EditorGUILayout.Toggle("Include Children",tagKindern);
18.         if(GUILayout.Button("Apply Tag")){
19.             Undo.RegisterSceneUndo("Set Mass Tags");
20.             for(var obj:GameObject in Selection.gameObjects){
21.                         obj.tag=tag;
22.                         if(tagKindern){
23.                             queue=new Array(obj.transform);
24.                     while(queue.length){
25.                         parent=queue.pop();
26.                         parent.gameObject.tag=tag;
27.                         for(var child:Transform in parent)queue.push(child);
28.                     }
29.                 }
30.             }
31.         }
32.         EditorGUILayout.Space();
33.         layer=EditorGUILayout.LayerField("Layer",layer);
34.         layerKindern=EditorGUILayout.Toggle("Include Children",layerKindern);
35.         if(GUILayout.Button("Apply Layer")){
36.             Undo.RegisterSceneUndo("Set Mass Layers");
37.             for(var obj:GameObject in Selection.gameObjects){
38.                 obj.layer=layer;
39.                 if(layerKindern){
40.                     queue=new Array(obj.transform);
41.                     while(queue.length){
42.                         parent=queue.pop();
43.                         parent.gameObject.layer=layer;
44.                         for(var child:Transform in parent)queue.push(child);
45.                     }
46.                 }
47.             }
48.         }
49.     }
50. }
51.  

 

these scripts don't seem to work for me.

i am trying to change a large group of image files to different tags - the tag list that the dialogue window contains is different than the one that unity brings up when you press the blue "..." button.

when i try any of the options available none of them take, including "untagged" and this is on single selected images.

thoughts?

(i am on 3.5.5f3 fwiw)

 

Here's a C# version of anyone that wants it. Just create a new C# script called 'TagNameWindow.cs' and add this code:

Code (CSharp):

1. using UnityEditor;
2. using UnityEngine;
3. using System.Collections;
4. using System.Collections.Generic;
5.  
6. public class TagNameWindow: EditorWindow {
7.    
8.     [MenuItem("GameObject/Set Tags and Layers")]
9.  
10.     static void Init(){
11.         TagNameWindow window =
12.             (TagNameWindow)EditorWindow.GetWindow(typeof(TagNameWindow));
13.         if (window == null) Debug.Log("No window");
14.     }
15.  
16.     string tag;
17.     int layer;
18.     bool tagKindern =false;
19.     bool layerKindern=false;
20.  
21.     void OnGUI(){
22.         ArrayList queue;
23.         Transform parent;
24.         EditorGUIUtility.LookLikeControls(150);
25.         tag=EditorGUILayout.TagField("Tag name",tag);
26.         tagKindern=EditorGUILayout.Toggle("Include Children",tagKindern);
27.         if(GUILayout.Button("Apply Tag")){
28.             Undo.RegisterSceneUndo("Set Mass Tags");
29.             foreach(GameObject obj in Selection.gameObjects){
30.                 obj.tag=tag;
31.                 if(tagKindern){
32.                     queue=new ArrayList();
33.                     queue.Add(obj.transform);
34.                     while(queue.Count>0){
35.                         parent= (Transform) queue[queue.Count-1];
36.                         queue.RemoveAt(queue.Count-1);
37.                         parent.gameObject.tag=tag;
38.                         foreach(Transform child in parent) queue.Add(child);
39.                     }
40.                 }
41.             }
42.         }
43.         EditorGUILayout.Space();
44.         layer=EditorGUILayout.LayerField("Layer",layer);
45.         layerKindern=EditorGUILayout.Toggle("Include Children",layerKindern);
46.         if(GUILayout.Button("Apply Layer")){
47.             Undo.RegisterSceneUndo("Set Mass Layers");
48.             foreach(GameObject obj in Selection.gameObjects){
49.                 obj.layer=layer;
50.                 if(layerKindern){
51.                     queue=new ArrayList();
52.                     queue.Add(obj.transform);
53.                     while(queue.Count>0){
54.                         parent= (Transform) queue[queue.Count-1];
55.                         queue.RemoveAt(queue.Count-1);
56.                         parent.gameObject.layer=layer;
57.                         foreach(Transform child in parent)queue.Add(child);
58.                     }
59.                 }
60.             }
61.         }
62.     }
63. }

 

There are also a number of tag asset store products that have this function. Full disclosure I own one of them, but it seemed liked thread readers might like options.

It might also be helpful if any custom implementation would create the tag if necessary. Simply follow this link and you will have yourself a complete custom tag assignment utility.