diff --git a/SabreTools.DatFiles/DatFile.Filtering.cs b/SabreTools.DatFiles/DatFile.Filtering.cs
index 781625e1..39af8edc 100644
--- a/SabreTools.DatFiles/DatFile.Filtering.cs
+++ b/SabreTools.DatFiles/DatFile.Filtering.cs
@@ -442,6 +442,9 @@ namespace SabreTools.DatFiles
             if (machine == null)
                 return;
 
+            // TODO: Clone current machine so that all data can be retained
+            // TODO: Assign cloned machine to the item with the new name
+
             // Remove extensions from Rom items
             if (datItem is Rom)
             {
@@ -510,6 +513,9 @@ namespace SabreTools.DatFiles
             if (machine.Value == null)
                 return;
 
+            // TODO: Clone current machine so that all data can be retained
+            // TODO: Assign cloned machine to the item with the new name
+
             // Remove extensions from Rom items
             if (datItem.Value is Rom)
             {