diff --git a/core/Cursor.gd b/core/Cursor.gd
index 80a6824..ddf7add 100644
--- a/core/Cursor.gd
+++ b/core/Cursor.gd
@@ -33,15 +33,6 @@ func _process(_delta):
 		grabbedSticker.position = grabbedStickerOffset+get_global_mouse_position()
 
 
-func isSticker(selectedObject:Node):
-	var _isSticker:bool = false
-	var _tags = Global.getTags(selectedObject)
-	if (_tags.size() > 0):
-		if (_tags.find("sticker") != -1):
-			_isSticker = true
-		
-	return _isSticker
-
 func pointcast():
 	resetCast()
 	query.collide_with_areas = true
@@ -67,7 +58,7 @@ func pointcast():
 				if (hoveredObject and hoveredObject.has_method("on_hover")):
 					hoveredObject.on_hover()
 				print("Current hovered object :", hoveredObject)
-				if (isSticker(hoveredObject)):
+				if (Global.isSticker(hoveredObject)):
 					hoveredSticker = hoveredObject
 					print("Current hovered sticker :", hoveredSticker)
 				else:
diff --git a/core/global.gd b/core/global.gd
index 39115e9..97fcea5 100644
--- a/core/global.gd
+++ b/core/global.gd
@@ -10,7 +10,7 @@ func _ready():
 func _process(_delta):
 	pass
 
-func getTags(selectedObject:Node):
+func get_tags(selectedObject:Node):
 	var _tags: Array
 	if (selectedObject.has_meta("tags")):
 		_tags = selectedObject.get_meta("tags")
@@ -19,3 +19,25 @@ func getTags(selectedObject:Node):
 		printerr("no tags inside %",selectedObject)
 		return _tags
 		
+func add_tags(selectedObject:Node,tags:Array):
+	var _all_tags:Array
+	if (selectedObject.has_meta("tags")):
+		_all_tags = selectedObject.get_meta("tags")
+	_all_tags.append(tags)
+	selectedObject.set_meta("tags",_all_tags)
+
+func remove_tags(selectedObject:Node,tags:Array):
+	if (selectedObject.has_meta("tags")):
+		var _all_tags:Array
+		_all_tags = selectedObject.get_meta("tags")
+		for _tag in tags:
+			_all_tags.erase(_tag)
+			
+func isSticker(selectedObject:Node):
+	var _isSticker:bool = false
+	var _tags = get_tags(selectedObject)
+	if (_tags.size() > 0):
+		if (_tags.find("sticker") != -1):
+			_isSticker = true
+		
+	return _isSticker