diff --git a/src/blenderbim/blenderbim/bim/module/clash/operator.py b/src/blenderbim/blenderbim/bim/module/clash/operator.py
index 6c31fd3518..cca448f896 100644
--- a/src/blenderbim/blenderbim/bim/module/clash/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/clash/operator.py
@@ -31,6 +31,7 @@ from blenderbim.bim.ifc import IfcStore
 class ExportClashSets(bpy.types.Operator):
     bl_idname = "bim.export_clash_sets"
     bl_label = "Export Clash Sets"
+    bl_description = "Export clash sets to a selected file"
     filename_ext = ".json"
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
     filter_glob: bpy.props.StringProperty(default="*.json", options={"HIDDEN"})
@@ -64,6 +65,7 @@ class ImportClashSets(bpy.types.Operator):
     bl_idname = "bim.import_clash_sets"
     bl_label = "Import Clash Sets"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Import clash sets from a selected file"
     filename_ext = ".json"
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
     filter_glob: bpy.props.StringProperty(default="*.json", options={"HIDDEN"})
@@ -100,6 +102,7 @@ class ImportClashSets(bpy.types.Operator):
 class AddClashSet(bpy.types.Operator):
     bl_idname = "bim.add_clash_set"
     bl_label = "Add Clash Set"
+    bl_description = "Add a clash set"
     bl_options = {"REGISTER", "UNDO"}
 
     def execute(self, context):
@@ -113,6 +116,7 @@ class RemoveClashSet(bpy.types.Operator):
     bl_idname = "bim.remove_clash_set"
     bl_label = "Remove Clash Set"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Remove the selected clash set"
     index: bpy.props.IntProperty()
 
     def execute(self, context):
@@ -124,6 +128,7 @@ class AddClashSource(bpy.types.Operator):
     bl_idname = "bim.add_clash_source"
     bl_label = "Add Clash Source"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Add a clash source to this group"
     group: bpy.props.StringProperty()
 
     def execute(self, context):
@@ -136,6 +141,7 @@ class RemoveClashSource(bpy.types.Operator):
     bl_idname = "bim.remove_clash_source"
     bl_label = "Remove Clash Source"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Remove this clash source"
     index: bpy.props.IntProperty()
     group: bpy.props.StringProperty()
 
@@ -149,6 +155,7 @@ class SelectClashSource(bpy.types.Operator):
     bl_idname = "bim.select_clash_source"
     bl_label = "Select Clash Source"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Select an IFC file to add as a clash source"
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
     filter_glob: bpy.props.StringProperty(default="*.ifc", options={"HIDDEN"})
     index: bpy.props.IntProperty()
@@ -197,6 +204,7 @@ class SelectSmartGroupedClashesPath(bpy.types.Operator):
 class ExecuteIfcClash(bpy.types.Operator):
     bl_idname = "bim.execute_ifc_clash"
     bl_label = "Execute IFC Clash"
+    bl_description = "Execute clash detection and save the information to a .bcf or .json file"
     filter_glob: bpy.props.StringProperty(default="*.bcf;*.json", options={"HIDDEN"})
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
@@ -266,6 +274,7 @@ class SelectIfcClashResults(bpy.types.Operator):
     bl_idname = "bim.select_ifc_clash_results"
     bl_label = "Select IFC Clash Results"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Select the clashing IFC geometry stored in a file"
     filename_ext = ".json"
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")
 
diff --git a/src/blenderbim/blenderbim/bim/module/project/operator.py b/src/blenderbim/blenderbim/bim/module/project/operator.py
index d500cc3635..aa47238327 100644
--- a/src/blenderbim/blenderbim/bim/module/project/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/project/operator.py
@@ -548,6 +548,7 @@ class UnloadProject(bpy.types.Operator):
     bl_idname = "bim.unload_project"
     bl_label = "Unload Project"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Unload the IFC project"
 
     def execute(self, context):
         IfcStore.purge()
@@ -811,6 +812,7 @@ class ExportIFC(bpy.types.Operator):
     bl_idname = "export_ifc.bim"
     bl_label = "Export IFC"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Export the IFC project"
     filename_ext = ".ifc"
     filter_glob: bpy.props.StringProperty(default="*.ifc;*.ifczip;*.ifcxml;*.ifcjson", options={"HIDDEN"})
     filepath: bpy.props.StringProperty(subtype="FILE_PATH")