diff --git a/history.md b/history.md
index 02c9474..7c347b6 100644
--- a/history.md
+++ b/history.md
@@ -225,4 +225,7 @@
 
 ### Version 0.5.4 (May 21, 2024)
 * Automatically search for Ansys Lumerical Python API.
-* Add use_gpu option for fdtd_region.
\ No newline at end of file
+* Add use_gpu option for fdtd_region.
+* 
+### Version 0.5.5 (Jul 21, 2024)
+* Add flip rotate scale move operations for layers.
\ No newline at end of file
diff --git a/splayout/__init__.py b/splayout/__init__.py
index 89aab73..6ab8efe 100644
--- a/splayout/__init__.py
+++ b/splayout/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.5.4"
+__version__ = "0.5.5"
 
 ## Submodules
 from . import utils
diff --git a/splayout/utils/utils.py b/splayout/utils/utils.py
index 9cd93af..57da632 100644
--- a/splayout/utils/utils.py
+++ b/splayout/utils/utils.py
@@ -283,7 +283,7 @@ def inversion(self, distance = 2, output_layer = None):
 
         Notes
         -----
-        The sub-cells will be taken into calculation but will not be revised.s
+        The sub-cells will be taken into calculation but will not be revised.
         """
         if output_layer is None:
             output_layer = self
@@ -296,6 +296,89 @@ def inversion(self, distance = 2, output_layer = None):
         top_cell.remove_polygons(lambda p, l, d: (l == output_layer.layer and d == output_layer.datatype))
         top_cell.add(inversion_components)
 
+    def flip_horizontally(self):
+        """
+        Flip the components in this layer horizontally relative to Point(0, 0).
+        """
+        top_cell = common_lib.top_level()[0]
+        polygons = top_cell.get_polygons(by_spec=True)
+        flipped_components = []
+        for poly in polygons[(self.layer, self.datatype)]:
+            flipped_components.append(gdspy.Polygon(poly, self.layer, self.datatype).mirror((0, -1), (0, 1)))
+        top_cell.remove_polygons(lambda p, l, d: (l == self.layer and d == self.datatype))
+        top_cell.add(flipped_components)
+
+    def flip_vertically(self):
+        """
+        Flip the components in this layer vertically relative to Point(0, 0).
+        """
+        top_cell = common_lib.top_level()[0]
+        polygons = top_cell.get_polygons(by_spec=True)
+        flipped_components = []
+        for poly in polygons[(self.layer, self.datatype)]:
+            flipped_components.append(gdspy.Polygon(poly, self.layer, self.datatype).mirror((-1, 0), (1, 0)))
+        top_cell.remove_polygons(lambda p, l, d: (l == self.layer and d == self.datatype))
+        top_cell.add(flipped_components)
+
+
+    def rotate(self, radian):
+        """
+        Rotate the components in this layer relative to Point(0, 0).
+
+        Parameters
+        ----------
+        radian : Float
+            Rotation angle in radian.
+        """
+        top_cell = common_lib.top_level()[0]
+        polygons = top_cell.get_polygons(by_spec=True)
+        rotated_components = []
+        for poly in polygons[(self.layer, self.datatype)]:
+            rotated_components.append(gdspy.Polygon(poly, self.layer, self.datatype).rotate(radian, (0, 0)))
+        top_cell.remove_polygons(lambda p, l, d: (l == self.layer and d == self.datatype))
+        top_cell.add(rotated_components)
+
+
+    def scale(self, scalex, scaley=None):
+        """
+        Scale the components in this layer relative to Point(0, 0).
+
+        Parameters
+        ----------
+        scalex : Float
+            Scaling ratio in x-axis.
+        scaley : Float
+            Scaling ratio in y-axis. (default: same with scalex)
+        """
+        if scaley is None:
+            scaley = scalex
+        top_cell = common_lib.top_level()[0]
+        polygons = top_cell.get_polygons(by_spec=True)
+        scaled_components = []
+        for poly in polygons[(self.layer, self.datatype)]:
+            scaled_components.append(gdspy.Polygon(poly, self.layer, self.datatype).scale(scalex, scaley, (0, 0)))
+        top_cell.remove_polygons(lambda p, l, d: (l == self.layer and d == self.datatype))
+        top_cell.add(scaled_components)
+
+    def move(self, distance_x=0, distance_y=0):
+        """
+        Move the components in this layer by a certain distance.
+
+        Parameters
+        ----------
+        distance_x : Int or Float
+            Moving distance in x-axis. (unit: micrometer, default: 0)
+        distance_y : Int or Float
+            Moving distance in y-axis. (unit: micrometer, default: 0)
+        """
+        top_cell = common_lib.top_level()[0]
+        polygons = top_cell.get_polygons(by_spec=True)
+        scaled_components = []
+        for poly in polygons[(self.layer, self.datatype)]:
+            scaled_components.append(gdspy.Polygon(poly, self.layer, self.datatype).translate(distance_x, distance_y))
+        top_cell.remove_polygons(lambda p, l, d: (l == self.layer and d == self.datatype))
+        top_cell.add(scaled_components)
+