You can now edit cost schedule attributes. Thanks Jesusbill and myoualid!

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

@@ -1,16 +1,20 @@
 import bpy
-from . import ui, operator
+from . import ui, prop, operator
 
 classes = (
     operator.AddCostSchedule,
     operator.RemoveCostSchedule,
+    operator.EditCostSchedule,
+    operator.EnableEditingCostSchedule,
+    operator.DisableEditingCostSchedule,
+    prop.BIMCostProperties,
     ui.BIM_PT_cost_schedules,
 )
 
 
 def register():
-    pass
+    bpy.types.Scene.BIMCostProperties = bpy.props.PointerProperty(type=prop.BIMCostProperties)
 
 
 def unregister():
-    pass
+    del bpy.types.Scene.BIMCostProperties

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

@@ -1,4 +1,5 @@
 import bpy
+import json
 import ifcopenshell.api
 from blenderbim.bim.ifc import IfcStore
 from ifcopenshell.api.cost.data import Data
@@ -27,3 +28,73 @@ class RemoveCostSchedule(bpy.types.Operator):
         )
         Data.load(IfcStore.get_file())
         return {"FINISHED"}
+
+
+class EnableEditingCostSchedule(bpy.types.Operator):
+    bl_idname = "bim.enable_editing_cost_schedule"
+    bl_label = "Enable Editing Cost Schedule"
+    cost_schedule: bpy.props.IntProperty()
+
+    def execute(self, context):
+        props = context.scene.BIMCostProperties
+        props.active_cost_schedule_id = self.cost_schedule
+
+        while len(props.cost_schedule_attributes) > 0:
+            props.cost_schedule_attributes.remove(0)
+
+        data = Data.cost_schedules[self.cost_schedule]
+
+        for attribute in IfcStore.get_schema().declaration_by_name("IfcCostSchedule").all_attributes():
+            data_type = ifcopenshell.util.attribute.get_primitive_type(attribute)
+            if data_type == "entity":
+                continue
+            new = props.cost_schedule_attributes.add()
+            new.name = attribute.name()
+            new.is_null = data[attribute.name()] is None
+            new.is_optional = attribute.optional()
+            new.data_type = data_type
+            if attribute.name() in ["SubmittedOn", "UpdateDate"]:
+                new.string_value = "" if new.is_null else data[attribute.name()].isoformat()
+            elif data_type == "string":
+                new.string_value = "" if new.is_null else data[attribute.name()]
+            elif data_type == "enum":
+                new.enum_items = json.dumps(ifcopenshell.util.attribute.get_enum_items(attribute))
+                if data[attribute.name()]:
+                    new.enum_value = data[attribute.name()]
+        return {"FINISHED"}
+
+
+class DisableEditingCostSchedule(bpy.types.Operator):
+    bl_idname = "bim.disable_editing_cost_schedule"
+    bl_label = "Disable Editing Cost Schedule"
+
+    def execute(self, context):
+        props = context.scene.BIMCostProperties
+        props.active_cost_schedule_id = 0
+        return {"FINISHED"}
+
+
+class EditCostSchedule(bpy.types.Operator):
+    bl_idname = "bim.edit_cost_schedule"
+    bl_label = "Edit Cost Schedule"
+
+    def execute(self, context):
+        props = context.scene.BIMCostProperties
+        attributes = {}
+        for attribute in props.cost_schedule_attributes:
+            if attribute.is_null:
+                attributes[attribute.name] = None
+            else:
+                if attribute.data_type == "string":
+                    attributes[attribute.name] = attribute.string_value
+                elif attribute.data_type == "enum":
+                    attributes[attribute.name] = attribute.enum_value
+        self.file = IfcStore.get_file()
+        ifcopenshell.api.run(
+            "cost.edit_cost_schedule",
+            self.file,
+            **{"cost_schedule": self.file.by_id(props.active_cost_schedule_id), "attributes": attributes}
+        )
+        Data.load(IfcStore.get_file())
+        bpy.ops.bim.disable_editing_cost_schedule()
+        return {"FINISHED"}

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

@@ -0,0 +1,18 @@
+import bpy
+from blenderbim.bim.prop import StrProperty, Attribute
+from bpy.types import PropertyGroup
+from bpy.props import (
+    PointerProperty,
+    StringProperty,
+    EnumProperty,
+    BoolProperty,
+    IntProperty,
+    FloatProperty,
+    FloatVectorProperty,
+    CollectionProperty,
+)
+
+
+class BIMCostProperties(PropertyGroup):
+    cost_schedule_attributes: CollectionProperty(name="Cost Schedule Attributes", type=Attribute)
+    active_cost_schedule_id: IntProperty(name="Active Cost Schedule Id")

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

@@ -16,6 +16,8 @@ class BIM_PT_cost_schedules(Panel):
         return IfcStore.get_file()
 
     def draw(self, context):
+        props = context.scene.BIMCostProperties
+
         if not Data.is_loaded:
             Data.load(IfcStore.get_file())
 
@@ -25,5 +27,22 @@ class BIM_PT_cost_schedules(Panel):
         for cost_schedule_id, cost_schedule in Data.cost_schedules.items():
             row = self.layout.row(align=True)
             row.label(text=cost_schedule["Name"] or "Unnamed", icon="LINENUMBERS_ON")
-            row.operator("bim.add_cost_schedule", text="", icon="GREASEPENCIL")
-            row.operator("bim.remove_cost_schedule", text="", icon="X").cost_schedule = cost_schedule_id
+
+            if props.active_cost_schedule_id and props.active_cost_schedule_id == cost_schedule_id:
+                row.operator("bim.edit_cost_schedule", text="", icon="CHECKMARK")
+                row.operator("bim.disable_editing_cost_schedule", text="", icon="X")
+            elif props.active_cost_schedule_id:
+                row.operator("bim.remove_cost_schedule", text="", icon="X").cost_schedule = cost_schedule_id
+            else:
+                row.operator("bim.enable_editing_cost_schedule", text="", icon="GREASEPENCIL").cost_schedule = cost_schedule_id
+                row.operator("bim.remove_cost_schedule", text="", icon="X").cost_schedule = cost_schedule_id
+
+            if props.active_cost_schedule_id == cost_schedule_id:
+                for attribute in props.cost_schedule_attributes:
+                    row = self.layout.row(align=True)
+                    if attribute.data_type == "string":
+                        row.prop(attribute, "string_value", text=attribute.name)
+                    elif attribute.data_type == "enum":
+                        row.prop(attribute, "enum_value", text=attribute.name)
+                    if attribute.is_optional:
+                        row.prop(attribute, "is_null", icon="RADIOBUT_OFF" if attribute.is_null else "RADIOBUT_ON", text="")

src/ifcopenshell-python/ifcopenshell/api/cost/edit_cost_schedule.py

@@ -0,0 +1,10 @@
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {"cost_schedule": None, "attributes": {}}
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        for name, value in self.settings["attributes"].items():
+            setattr(self.settings["cost_schedule"], name, value)