diff --git a/src/blenderbim/blenderbim/bim/module/search/__init__.py b/src/blenderbim/blenderbim/bim/module/search/__init__.py
index 0eadf9a42d..57379f90a1 100644
--- a/src/blenderbim/blenderbim/bim/module/search/__init__.py
+++ b/src/blenderbim/blenderbim/bim/module/search/__init__.py
@@ -38,6 +38,7 @@ classes = (
     operator.SaveSelectorQuery,
     operator.OpenQueryLibrary,
     operator.LoadQuery,
+    operator.AddToIfcGroup,
     prop.BIMFilterClasses,
     prop.BIMFilterBuildingStoreys,
     prop.BIMSearchProperties,
diff --git a/src/blenderbim/blenderbim/bim/module/search/operator.py b/src/blenderbim/blenderbim/bim/module/search/operator.py
index f1736d85f0..a1d8af4434 100644
--- a/src/blenderbim/blenderbim/bim/module/search/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/search/operator.py
@@ -20,6 +20,7 @@ import re
 import bpy
 import ifcopenshell
 import ifcopenshell.util.element
+from ifcopenshell.api.group.data import Data
 from ifcopenshell.util.selector import Selector
 import blenderbim.tool as tool
 from blenderbim.bim.ifc import IfcStore
@@ -65,7 +66,14 @@ def does_keyword_exist(pattern, string, context):
     elif string == pattern:
         return True
 
-
+# hack to close popup
+# https://blender.stackexchange.com/a/202576/130742
+def close_operator_panel(event):
+    x, y = event.mouse_x, event.mouse_y
+    bpy.context.window.cursor_warp(10, 10)
+    move_back = lambda: bpy.context.window.cursor_warp(x, y)
+    bpy.app.timers.register(move_back, first_interval=0.01)
+    
 class EditBlenderCollection(Operator):
     bl_idname = "bim.edit_blender_collection"
     bl_label = "Add or Remove blender collection item"
@@ -513,7 +521,7 @@ class FilterModelElements(Operator):
                 selection = self.add_filters(selection, query)
 
             elif query.selector == "GlobalId":
-                selection += f"#{query.global_id}"
+                selection += f"#{query.value}"
 
             elif query.selector == "IfcElementType":
                 index = int(query.active_sub_option.split(":")[0])
@@ -562,7 +570,6 @@ class FilterModelElements(Operator):
 
 class IfcSelector(Operator):
     """Select elements in model with IFC Selector"""
-
     bl_idname = "bim.ifc_selector"
     bl_label = "Select elements with IFC Selector"
 
@@ -603,19 +610,11 @@ class SaveSelectorQuery(Operator):
 
 class OpenQueryLibrary(Operator):
     """Open Query Library"""
-
     bl_idname = "bim.open_query_library"
     bl_label = "Open Query Library"
 
     def invoke(self, context, event):
-        return context.window_manager.invoke_props_dialog(self, width=400)
-
-    def close_panel(event):
-        x, y = event.mouse_x, event.mouse_y
-        bpy.context.window.cursor_warp(10, 10)
-
-        move_back = lambda: bpy.context.window.cursor_warp(x, y)
-        bpy.app.timers.register(move_back, first_interval=0.001)
+        return context.window_manager.invoke_popup(self, width=400)
 
     def draw(self, context):
         layout = self.layout
@@ -642,7 +641,37 @@ class LoadQuery(Operator):
     bl_label = "Load Query"
     index: IntProperty()
 
+    def invoke(self, context, event):
+        close_operator_panel(event)
+        return self.execute(context)
+    
     def execute(self, context):
         ifc_selector = context.scene.IfcSelectorProperties
         ifc_selector.selector_query_syntax = ifc_selector.query_library[self.index].query
         return {"FINISHED"}
+    
+class AddToIfcGroup(Operator):
+    bl_idname = "bim.add_to_ifc_group"
+    bl_label = "Add to IFC Group"
+    group_name: StringProperty(name="Group Name")
+
+    def invoke(self, context, event):
+        return context.window_manager.invoke_props_dialog(self, width=400)
+    
+    def draw(self, context):
+        layout = self.layout
+        layout.prop(self, "group_name")
+        
+    def execute(self, context):
+        self.file = IfcStore.get_file()
+        ifc_selector = context.scene.IfcSelectorProperties
+        selector_query_syntax = ifc_selector.selector_query_syntax
+        
+        group = ifcopenshell.api.run("group.add_group", self.file, **{"Name": self.group_name})
+        objects = Selector.parse(self.file, selector_query_syntax)
+        for obj in objects:
+            ifcopenshell.api.run("group.assign_group", self.file, **{"product": obj, "group": group})
+        
+        Data.load(IfcStore.get_file())
+        
+        return {"FINISHED"}
diff --git a/src/blenderbim/blenderbim/bim/module/search/ui.py b/src/blenderbim/blenderbim/bim/module/search/ui.py
index 01669337d0..0d0b1be7ca 100644
--- a/src/blenderbim/blenderbim/bim/module/search/ui.py
+++ b/src/blenderbim/blenderbim/bim/module/search/ui.py
@@ -153,7 +153,8 @@ class IfcSelectorUI:
             row = layout.row(align=True)
             row.alignment = "CENTER"
             row.operator("bim.save_selector_query", text="Save Query")
-            row.operator("bim.open_query_library", text="Load Query")
+            op = row.operator("bim.open_query_library", text="Load Query")
+            row.operator("bim.add_to_ifc_group", text="Add to IFC Group")
 
     def draw_query_group_ui(self, ifc_selector, layout):
         for index, group in enumerate(ifc_selector.groups):
diff --git a/src/ifcopenshell-python/ifcopenshell/api/group/add_group.py b/src/ifcopenshell-python/ifcopenshell/api/group/add_group.py
index 6a4ebfc2f5..27a7e4972e 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/group/add_group.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/group/add_group.py
@@ -23,7 +23,9 @@ import ifcopenshell.api
 class Usecase:
     def __init__(self, file, **settings):
         self.file = file
-        self.settings = {}
+        self.settings = {
+            "Name": "Unnamed"
+        }
         for key, value in settings.items():
             self.settings[key] = value
 
@@ -33,6 +35,6 @@ class Usecase:
             **{
                 "GlobalId": ifcopenshell.guid.new(),
                 "OwnerHistory": ifcopenshell.api.run("owner.create_owner_history", self.file),
-                "Name": "Unnamed",
+                "Name": self.settings["Name"],
             }
         )
diff --git a/src/ifcopenshell-python/ifcopenshell/util/selector.py b/src/ifcopenshell-python/ifcopenshell/util/selector.py
index fb98c7a87d..fd4b790350 100644
--- a/src/ifcopenshell-python/ifcopenshell/util/selector.py
+++ b/src/ifcopenshell-python/ifcopenshell/util/selector.py
@@ -189,7 +189,7 @@ class Selector:
                 value = None
         for element in elements:
             element_value = cls.get_element_value(element, key)
-            if element_value is None and value is not None:
+            if element_value is None and value is not None and "not" not in comparison:
                 continue
             if comparison and cls.filter_element(element, element_value, comparison, value):
                 results.append(element)
diff --git a/src/ifcopenshell-python/test/util/test_selector.py b/src/ifcopenshell-python/test/util/test_selector.py
index 37a744e6e4..787b4b2b60 100644
--- a/src/ifcopenshell-python/test/util/test_selector.py
+++ b/src/ifcopenshell-python/test/util/test_selector.py
@@ -112,6 +112,27 @@ class TestSelector(test.bootstrap.IFC4):
         assert subject.Selector.parse(self.file, '.IfcElement[Name*="oba"]') == [element]
         assert subject.Selector.parse(self.file, '.IfcElement[Name*="abc"]') == []
 
+    def test_selecting_if_value_not_matching(self):
+        element_1 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        element_2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        pset_1 = ifcopenshell.api.run("pset.add_pset", self.file, product=element_1, name="Foo_Bar")
+        pset_2 = ifcopenshell.api.run("pset.add_pset", self.file, product=element_2, name="Foo_Bar")
+        ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset_1, properties={"Foo": "Bar"})
+        ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset_2, properties={"Foo": "BOO"})
+        assert subject.Selector.parse(self.file, '.IfcElement[Foo_Bar.Foo != "Bar"]') == [element_2]
+        assert subject.Selector.parse(self.file, '.IfcElement[Foo_Bar.Foo != "BOO"]') == [element_1]
+        
+
+    def test_selecting_when_attribute_is_none(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        assert subject.Selector.parse(self.file, '.IfcElement[PredefinedType !="non-existent predefined type"]') == [element]
+        
+    def test_selecting_a_property_which_includes_non_standard_characters(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        pset = ifcopenshell.api.run("pset.add_pset", self.file, product=element, name="a !%$§&/()?|*-+,€~#@µ^°a")
+        ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset, properties={"a !%$§&/()?|*-+,€~#@µ^°a": "Bar"})
+        assert subject.Selector.parse(self.file, '.IfcElement[a !%$§&/()?|*-+,€~#@µ^°a.a !%$§&/()?|*-+,€~#@µ^°a="Bar"]') == [element]
+
     def test_comparing_if_value_is_in_a_list(self):
         element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
         element.Name = "Foobar"