You can now filter products assigned to a cost item or schedule

src/blenderbim/blenderbim/bim/module/cost/__init__.py

@@ -31,6 +31,8 @@ classes = (
     operator.AddCostValue,
     operator.RemoveCostItemValue,
     operator.CopyCostItemValues,
+    operator.SelectCostItemProducts,
+    operator.SelectCostScheduleProducts,
     prop.CostItem,
     prop.BIMCostProperties,
     ui.BIM_PT_cost_schedules,

src/blenderbim/blenderbim/bim/module/cost/operator.py

@@ -532,3 +532,41 @@ class CopyCostItemValues(bpy.types.Operator):
         )
         Data.load(IfcStore.get_file())
         return {"FINISHED"}
+
+
+class SelectCostItemProducts(bpy.types.Operator):
+    bl_idname = "bim.select_cost_item_products"
+    bl_label = "Select Cost Item Products"
+    cost_item: bpy.props.IntProperty()
+
+    def execute(self, context):
+        self.file = IfcStore.get_file()
+        related_products = Data.cost_items[self.cost_item]["Controls"]
+        for obj in bpy.context.visible_objects:
+            obj.select_set(False)
+            if obj.BIMObjectProperties.ifc_definition_id in related_products:
+                obj.select_set(True)
+        return {"FINISHED"}
+
+
+class SelectCostScheduleProducts(bpy.types.Operator):
+    bl_idname = "bim.select_cost_schedule_products"
+    bl_label = "Select Cost Schedule Products"
+    cost_schedule: bpy.props.IntProperty()
+
+    def execute(self, context):
+        self.file = IfcStore.get_file()
+        self.related_products = []
+        for cost_item_id in Data.cost_schedules[self.cost_schedule]["Controls"]:
+            self.get_related_products(Data.cost_items[cost_item_id])
+        self.related_products = set(self.related_products)
+        for obj in bpy.context.visible_objects:
+            obj.select_set(False)
+            if obj.BIMObjectProperties.ifc_definition_id in self.related_products:
+                obj.select_set(True)
+        return {"FINISHED"}
+
+    def get_related_products(self, cost_item):
+        self.related_products.extend(cost_item["Controls"])
+        for child_id in cost_item["IsNestedBy"]:
+            self.get_related_products(Data.cost_items[child_id])

src/blenderbim/blenderbim/bim/module/cost/ui.py

@@ -32,6 +32,8 @@ class BIM_PT_cost_schedules(Panel):
         row.label(text=cost_schedule["Name"] or "Unnamed", icon="LINENUMBERS_ON")
 
         if self.props.active_cost_schedule_id and self.props.active_cost_schedule_id == cost_schedule_id:
+            op = row.operator("bim.select_cost_schedule_products", icon="RESTRICT_SELECT_OFF", text="")
+            op.cost_schedule = cost_schedule_id
             if self.props.is_editing == "COST_SCHEDULE":
                 row.operator("bim.edit_cost_schedule", text="", icon="CHECKMARK")
             elif self.props.is_editing == "COST_ITEMS":
@@ -271,6 +273,8 @@ class BIM_UL_cost_items(UIList):
                 row.operator("bim.add_cost_item", text="", icon="ADD").cost_item = item.ifc_definition_id
                 row.operator("bim.remove_cost_item", text="", icon="X").cost_item = item.ifc_definition_id
             else:
+                op = row.operator("bim.select_cost_item_products", icon="RESTRICT_SELECT_OFF", text="")
+                op.cost_item = item.ifc_definition_id
                 row.operator(
                     "bim.enable_editing_cost_item", text="", icon="GREASEPENCIL"
                 ).cost_item = item.ifc_definition_id