diff --git a/src/bonsai/bonsai/bim/module/pset/operator.py b/src/bonsai/bonsai/bim/module/pset/operator.py
index 24662bee04..fe08585701 100644
--- a/src/bonsai/bonsai/bim/module/pset/operator.py
+++ b/src/bonsai/bonsai/bim/module/pset/operator.py
@@ -433,6 +433,14 @@ class BIM_OT_bulk_remove_psets(bpy.types.Operator, tool.Ifc.Operator):
 class AddProposedProp(bpy.types.Operator):
     bl_idname = "bim.add_proposed_prop"
     bl_label = "Add Proposed Prop"
+    bl_description = (
+        "Add proposed property to the custom property set.\n\n"
+        "Property type will be deduced from the provided value. Possible types:\n"
+        "- provide an integer or a float to create integer/real property\n"
+        "- 'true', 'false' to add a boolean property\n"
+        "- 'null' or '' (empty value) to add a null property\n"
+        "- any other value will be added as a string property"
+    )
     bl_options = {"REGISTER", "UNDO"}
     obj: bpy.props.StringProperty()
     obj_type: bpy.props.StringProperty()
diff --git a/src/bonsai/bonsai/bim/module/pset/prop.py b/src/bonsai/bonsai/bim/module/pset/prop.py
index 074ac3d73f..7804521221 100644
--- a/src/bonsai/bonsai/bim/module/pset/prop.py
+++ b/src/bonsai/bonsai/bim/module/pset/prop.py
@@ -243,6 +243,7 @@ class PsetProperties(PropertyGroup):
     properties: CollectionProperty(name="Properties", type=IfcProperty)
     pset_name: EnumProperty(items=get_pset_name, name="Pset Name")
     qto_name: EnumProperty(items=get_qto_name, name="Qto Name")
+    # Proposed property.
     prop_name: StringProperty(name="Property Name", default="MyProperty")
     prop_value: StringProperty(name="Property Value", default="Some Value")