See #6570. Now it is possible to assign a cost rate from a non schedule of rate cost schedule

src/bonsai/bonsai/bim/module/cost/data.py

@@ -319,6 +319,7 @@ class CostItemRatesData:
     def load(cls):
         cls.data = {
             "schedule_of_rates": cls.schedule_of_rates(),
+            "cost_schedules": cls.cost_schedules(),
         }
         cls.is_loaded = True
 
@@ -330,6 +331,13 @@ class CostItemRatesData:
             if s.PredefinedType == "SCHEDULEOFRATES"
         ]
     
+    @classmethod
+    def cost_schedules(cls) -> list[tuple[str, str, str]]:
+        return [
+            (str(s.id()), s.Name or "Unnamed", "")
+            for s in tool.Ifc.get().by_type("IfcCostSchedule")
+        ]
+
 
 class CostItemQuantitiesData:
     data = {}

src/bonsai/bonsai/bim/module/cost/prop.py

@@ -41,11 +41,15 @@ def get_schedule_of_rates(self, context):
         CostItemRatesData.load()
     return CostItemRatesData.data["schedule_of_rates"]
 
+def get_cost_schedules(self, context):
+    if not CostItemRatesData.is_loaded:
+        CostItemRatesData.load()
+    return CostItemRatesData.data["cost_schedules"]
+
 
 def update_schedule_of_rates(self, context):
     tool.Cost.load_schedule_of_rates_tree(schedule_of_rates=tool.Ifc.get().by_id(int(self.schedule_of_rates)))
 
-
 def get_quantity_types(self, context):
     if not CostSchedulesData.is_loaded:
         CostSchedulesData.load()
@@ -264,6 +268,9 @@ class BIMCostProperties(PropertyGroup):
     schedule_of_rates: EnumProperty(
         items=get_schedule_of_rates, name="Schedule Of Rates", update=update_schedule_of_rates
     )
+    cost_schedules: EnumProperty(
+        items=get_cost_schedules, name="Cost Schedules", update=update_schedule_of_rates
+    )
     cost_item_rates: CollectionProperty(name="Cost Item Rates", type=CostItem)
     active_cost_item_rate_index: IntProperty(name="Active Cost Rate Index")
     contracted_cost_item_rates: StringProperty(name="Contracted Cost Item Rates", default="[]")

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

@@ -608,8 +608,8 @@ class BIM_PT_cost_item_rates(Panel):
             return False
         if not CostSchedulesData.is_loaded:
             return False
-        if CostSchedulesData.data["is_editing_rates"]:
+        #if CostSchedulesData.data["is_editing_rates"]:
-            return False
+        #    return False
         if total_cost_items > 0 and props.active_cost_item_index < total_cost_items:
             return True
         return False
@@ -617,7 +617,8 @@ class BIM_PT_cost_item_rates(Panel):
     def draw(self, context):
         self.props = tool.Cost.get_cost_props()
         row = self.layout.row(align=True)
-        row.prop(self.props, "schedule_of_rates", text="")
+        #row.prop(self.props, "schedule_of_rates", text="")
+        row.prop(self.props, "cost_schedules", text="")
         if self.props.active_cost_item_rate_index < len(self.props.cost_item_rates):
             cost_item = self.props.cost_items[self.props.active_cost_item_index]
             cost_item_rate = self.props.cost_item_rates[self.props.active_cost_item_rate_index]