diff --git a/src/blenderbim/blenderbim/bim/module/fm/operator.py b/src/blenderbim/blenderbim/bim/module/fm/operator.py
index 813ceae37a..77dd0ac72d 100644
--- a/src/blenderbim/blenderbim/bim/module/fm/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/fm/operator.py
@@ -24,32 +24,21 @@ import logging
 import tempfile
 import ifcopenshell
 import blenderbim.tool as tool
+from blenderbim.bim.operator import MultipleFileSelector
 
 
-class SelectFMIfcFile(bpy.types.Operator):
+class SelectFMIfcFile(MultipleFileSelector):
     bl_idname = "bim.select_fm_ifc_file"
     bl_label = "Select FM IFC File"
-    bl_options = {"REGISTER", "UNDO"}
     filename_ext = ".ifc"
     filter_glob: bpy.props.StringProperty(default="*.ifc;*.ifczip;*.ifcxml", options={"HIDDEN"})
-    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
-    files: bpy.props.CollectionProperty(name="File Path", type=bpy.types.OperatorFileListElement)
 
     def execute(self, context):
         props = context.scene.BIMFMProperties
-        props.ifc_files.clear()
-        dirname = os.path.dirname(self.filepath)
-        for f in self.files:
-            new = props.ifc_files.add()
-            new.name = os.path.join(dirname, f.name)
-        props.ifc_file = self.filepath
+
+        self.update_props(props, "ifc_file", props.ifc_files)
         return {"FINISHED"}
 
-    def invoke(self, context, event):
-        context.window_manager.fileselect_add(self)
-        return {"RUNNING_MODAL"}
-
-
 class ExecuteIfcFM(bpy.types.Operator):
     bl_idname = "bim.execute_ifcfm"
     bl_label = "Execute IfcFM"
diff --git a/src/blenderbim/blenderbim/bim/operator.py b/src/blenderbim/blenderbim/bim/operator.py
index ccb5c58666..e68f818176 100644
--- a/src/blenderbim/blenderbim/bim/operator.py
+++ b/src/blenderbim/blenderbim/bim/operator.py
@@ -141,6 +141,25 @@ class SelectURIAttribute(bpy.types.Operator):
         context.window_manager.fileselect_add(self)
         return {"RUNNING_MODAL"}
 
+class MultipleFileSelector(bpy.types.Operator):
+    bl_label = "Select Multiple Files"
+    bl_options = {"REGISTER", "UNDO"}
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+    files: bpy.props.CollectionProperty(name="File Path", type=bpy.types.OperatorFileListElement)
+
+    def update_props(self, props, single_file: str, file_list: bpy.types.CollectionProperty):
+        dirname = os.path.dirname(self.filepath)
+        file_list.clear()
+
+        for f in self.files:
+            new = file_list.add()
+            new.name = os.path.join(dirname, f.name)
+        setattr(props, single_file, self.filepath)
+
+
+    def invoke(self, context, event):
+        context.window_manager.fileselect_add(self)
+        return {"RUNNING_MODAL"}
 
 class SelectIfcFile(bpy.types.Operator, IFCFileSelector):
     bl_idname = "bim.select_ifc_file"