diff --git a/napari_process_points_and_surfaces/__init__.py b/napari_process_points_and_surfaces/__init__.py
index 87d655e..616cff5 100644
--- a/napari_process_points_and_surfaces/__init__.py
+++ b/napari_process_points_and_surfaces/__init__.py
@@ -22,10 +22,10 @@
                     to_napari_surface_data,
                     to_napari_points_data,
                     smooth_surface,
-                    subdivide_loop_vedo,
-                    subdivide_linear,
+                    _subdivide_loop_vedo,
+                    _subdivide_linear,
                     subdivide_adaptive,
-                    subdivide_butterfly,
+                    _subdivide_butterfly,
                     sample_points_from_surface,
                     subsample_points,
                     create_convex_hull_from_points,
diff --git a/napari_process_points_and_surfaces/_tests/test_function.py b/napari_process_points_and_surfaces/_tests/test_function.py
index 584502a..538b35b 100644
--- a/napari_process_points_and_surfaces/_tests/test_function.py
+++ b/napari_process_points_and_surfaces/_tests/test_function.py
@@ -61,10 +61,10 @@ def test_something2():
                          to_napari_surface_data,
                          to_napari_points_data,
                          smooth_surface,
-                         subdivide_loop_vedo,
-                         subdivide_linear,
+                         _subdivide_loop_vedo,
+                         _subdivide_linear,
                          subdivide_adaptive,
-                         subdivide_butterfly,
+                         _subdivide_butterfly,
                          sample_points_from_surface,
                          subsample_points,
                          create_convex_hull_from_surface,
@@ -84,10 +84,10 @@ def test_something2():
     napari_points = to_napari_points_data(vedo_points)
 
     smooth_surface(surface)
-    subdivide_loop_vedo(surface)
+    _subdivide_loop_vedo(surface)
     subdivide_adaptive(surface)
-    subdivide_linear(surface)
-    subdivide_butterfly(surface)
+    _subdivide_linear(surface)
+    _subdivide_butterfly(surface)
     sample_points_from_surface(surface)
     subsample_points(napari_points)
     create_convex_hull_from_points(napari_points)
diff --git a/napari_process_points_and_surfaces/_vedo.py b/napari_process_points_and_surfaces/_vedo.py
index 2f885d8..8fa5da5 100644
--- a/napari_process_points_and_surfaces/_vedo.py
+++ b/napari_process_points_and_surfaces/_vedo.py
@@ -199,10 +199,10 @@ def smooth_surface(surface: "napari.types.SurfaceData",
     return to_napari_surface_data(smooth_mesh)
 
 
-@register_function(menu="Surfaces > Subdivide loop (vedo, nppas)")
-def subdivide_loop_vedo(surface: "napari.types.SurfaceData",
-                        number_of_iterations: int = 1
-                        ) -> "napari.types.SurfaceData":
+#@register_function(menu="Surfaces > Subdivide loop (vedo, nppas)")
+def _subdivide_loop_vedo(surface: "napari.types.SurfaceData",
+                         number_of_iterations: int = 1
+                         ) -> "napari.types.SurfaceData":
     """
     Make a mesh more detailed by subdividing in a loop.
 
@@ -224,10 +224,10 @@ def subdivide_loop_vedo(surface: "napari.types.SurfaceData",
     return to_napari_surface_data(mesh_out)
 
 
-@register_function(menu="Surfaces > Subdivide linear (vedo, nppas)")
-def subdivide_linear(surface: "napari.types.SurfaceData",
-                     number_of_iterations: int = 1
-                     ) -> "napari.types.SurfaceData":
+#@register_function(menu="Surfaces > Subdivide linear (vedo, nppas)")
+def _subdivide_linear(surface: "napari.types.SurfaceData",
+                      number_of_iterations: int = 1
+                      ) -> "napari.types.SurfaceData":
     """
     Make a mesh more detailed by linear subdivision.
 
@@ -250,7 +250,7 @@ def subdivide_linear(surface: "napari.types.SurfaceData",
     return to_napari_surface_data(mesh_out)
 
 
-@register_function(menu="Surfaces > Subdivide adaptive (vedo, nppas)")
+#@register_function(menu="Surfaces > Subdivide adaptive (vedo, nppas)")
 def subdivide_adaptive(surface: "napari.types.SurfaceData",
                        number_of_iterations: int = 1,
                        maximum_edge_length: float = 0.
@@ -285,9 +285,9 @@ def subdivide_adaptive(surface: "napari.types.SurfaceData",
 
 
 @register_function(menu="Surfaces > Subdivide butterfly (vedo, nppas)")
-def subdivide_butterfly(surface: "napari.types.SurfaceData",
-                        number_of_iterations: int = 1
-                        ) -> "napari.types.SurfaceData":
+def _subdivide_butterfly(surface: "napari.types.SurfaceData",
+                         number_of_iterations: int = 1
+                         ) -> "napari.types.SurfaceData":
     """
     Make a mesh more detailed by adaptive subdivision.