diff --git a/src/blenderbim/blenderbim/bim/module/model/workspace.py b/src/blenderbim/blenderbim/bim/module/model/workspace.py
index 164af0ae99..693ed8c8fa 100644
--- a/src/blenderbim/blenderbim/bim/module/model/workspace.py
+++ b/src/blenderbim/blenderbim/bim/module/model/workspace.py
@@ -18,15 +18,16 @@ class BimTool(WorkSpaceTool):
         # ("bim.wall_tool_op", {"type": 'MOUSEMOVE', "value": 'ANY'}, {"properties": []}),
         # ("mesh.add_wall", {"type": 'LEFTMOUSE', "value": 'PRESS'}, {"properties": []}),
         ("bim.add_type_instance", {"type": "A", "value": "PRESS", "shift": True}, {"properties": []}),
-        ("bim.hotkey", {"type": "E", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "E")]}),
+        ("bim.hotkey", {"type": "E", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_E")]}),
         ("bim.join_wall", {"type": "T", "value": "PRESS", "shift": True}, {"properties": [("join_type", "L")]}),
         ("bim.join_wall", {"type": "Y", "value": "PRESS", "shift": True}, {"properties": [("join_type", "V")]}),
         ("bim.flip_wall", {"type": "F", "value": "PRESS", "shift": True}, {"properties": []}),
         ("bim.split_wall", {"type": "S", "value": "PRESS", "shift": True}, {"properties": []}),
-        ("bim.hotkey", {"type": "X", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "X")]}),
-        ("bim.hotkey", {"type": "C", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "C")]}),
-        ("bim.hotkey", {"type": "V", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "V")]}),
-        ("bim.hotkey", {"type": "O", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "O")]}),
+        ("bim.hotkey", {"type": "X", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_X")]}),
+        ("bim.hotkey", {"type": "C", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_C")]}),
+        ("bim.hotkey", {"type": "V", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_V")]}),
+        ("bim.hotkey", {"type": "O", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_O")]}),
+        ("bim.hotkey", {"type": "O", "value": "PRESS", "alt": True}, {"properties": [("hotkey", "A_O")]}),
     )
 
     def draw_settings(context, layout, tool):
@@ -56,6 +57,8 @@ class BimTool(WorkSpaceTool):
         row.label(text="", icon="EVENT_V")
         row.label(text="Align")
 
+        row.label(text="", icon="EVENT_ALT")
+        row.label(text="Opening", icon="EVENT_O")
 
 class Hotkey(bpy.types.Operator):
     bl_idname = "bim.hotkey"
@@ -71,30 +74,33 @@ class Hotkey(bpy.types.Operator):
         getattr(self, f"hotkey_{self.hotkey}")()
         return {"FINISHED"}
 
-    def hotkey_C(self):
+    def hotkey_S_C(self):
         if self.props.ifc_class == "IfcWallType":
             bpy.ops.bim.align_wall(align_type="CENTERLINE")
         else:
             bpy.ops.bim.align_product(align_type="CENTERLINE")
 
-    def hotkey_E(self):
+    def hotkey_S_E(self):
         if self.props.ifc_class == "IfcWallType":
             bpy.ops.bim.join_wall(join_type="T")
 
-    def hotkey_V(self):
+    def hotkey_S_V(self):
         if self.props.ifc_class == "IfcWallType":
             bpy.ops.bim.align_wall(align_type="INTERIOR")
         else:
             bpy.ops.bim.align_product(align_type="POSITIVE")
 
-    def hotkey_X(self):
+    def hotkey_S_X(self):
         if self.props.ifc_class == "IfcWallType":
             bpy.ops.bim.align_wall(align_type="EXTERIOR")
         else:
             bpy.ops.bim.align_product(align_type="NEGATIVE")
 
-    def hotkey_O(self):
+    def hotkey_S_O(self):
         if self.props.ifc_class == "IfcWallType":
             bpy.ops.bim.add_wall_opening()
         elif self.props.ifc_class == "IfcSlabType":
             bpy.ops.bim.add_slab_opening()
+
+    def hotkey_A_O(self):
+        bpy.ops.bim.toggle_opening_visibility()
diff --git a/src/blenderbim/blenderbim/bim/module/void/__init__.py b/src/blenderbim/blenderbim/bim/module/void/__init__.py
index 3727f40508..a65a04ee84 100644
--- a/src/blenderbim/blenderbim/bim/module/void/__init__.py
+++ b/src/blenderbim/blenderbim/bim/module/void/__init__.py
@@ -6,6 +6,7 @@ classes = (
     operator.RemoveOpening,
     operator.AddFilling,
     operator.RemoveFilling,
+    operator.ToggleOpeningVisibility,
     prop.VoidProperties,
     ui.BIM_PT_voids,
 )
diff --git a/src/blenderbim/blenderbim/bim/module/void/operator.py b/src/blenderbim/blenderbim/bim/module/void/operator.py
index 4e87b7aaeb..537b5faf19 100644
--- a/src/blenderbim/blenderbim/bim/module/void/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/void/operator.py
@@ -130,3 +130,15 @@ class RemoveFilling(bpy.types.Operator):
         )
         Data.load(IfcStore.get_file(), obj.BIMObjectProperties.ifc_definition_id)
         return {"FINISHED"}
+
+
+class ToggleOpeningVisibility(bpy.types.Operator):
+    bl_idname = "bim.toggle_opening_visibility"
+    bl_label = "Toggle Opening Visibility"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        for project in [c for c in bpy.context.view_layer.layer_collection.children if "IfcProject" in c.name]:
+            for collection in [c for c in project.children if "IfcOpeningElements" in c.name]:
+                collection.hide_viewport = not collection.hide_viewport
+        return {"FINISHED"}