diff --git a/docs/nodes/CAD/stright_skeleton_2d.rst b/docs/nodes/CAD/stright_skeleton_2d.rst
index bcbf02b4bf..501fb03413 100644
--- a/docs/nodes/CAD/stright_skeleton_2d.rst
+++ b/docs/nodes/CAD/stright_skeleton_2d.rst
@@ -4,6 +4,8 @@ Stright Skeleton 2d
 .. image:: https://github.com/user-attachments/assets/2a141705-62e6-489b-a4be-9333df8c7951
   :target: https://github.com/user-attachments/assets/2a141705-62e6-489b-a4be-9333df8c7951
 
+!!! **"Exclude height" parameter was renamed into "Restrict Height" !!! Images will be updated later...**
+
 Functionality
 -------------
 
@@ -39,7 +41,7 @@ Inputs
     .. image:: https://github.com/user-attachments/assets/3ce5a747-9b8d-4aef-94fc-9e268425e6a6
       :target: https://github.com/user-attachments/assets/3ce5a747-9b8d-4aef-94fc-9e268425e6a6
 
-- **Taper Angle** - Angle between plane and Face that this algorithm will build.
+- **Taper Angle** - Angle between plane and Face that this algorithm will build. Valid range is 0 < Taper Angle <180 Degrees; 0 and 180 are invelid angles. Also 90 degrees is invalid param if "Restrict Height" is off.
 
     .. image:: https://github.com/user-attachments/assets/666c3a16-f124-4230-906b-8b4ea2cd699c
       :target: https://github.com/user-attachments/assets/666c3a16-f124-4230-906b-8b4ea2cd699c
@@ -120,7 +122,7 @@ Parameters
         .. image:: https://github.com/user-attachments/assets/bd119bb8-ad08-4983-be67-d97c20ad8bb3
           :target: https://github.com/user-attachments/assets/bd119bb8-ad08-4983-be67-d97c20ad8bb3
 
-    - **Exclude Height** - If you want to see objects without height limits just turn it on. All objects will be recalulated without heights limits.
+    - **Restrict Height** (old name is "Exclude Height")- If you want to see objects without height limits just turn it off. All objects will be recalulated without heights limits (in the input field or socket).
 
         .. raw:: html
 
diff --git a/nodes/CAD/stright_skeleton_2d.py b/nodes/CAD/stright_skeleton_2d.py
index becc6b375f..cc8b394efe 100644
--- a/nodes/CAD/stright_skeleton_2d.py
+++ b/nodes/CAD/stright_skeleton_2d.py
@@ -215,12 +215,13 @@ def wrapper_tracked_ui_draw_op(self, layout_element, operator_idname, **keywords
 
     ss_height: FloatProperty(
         default=1.0, name="Height", update=updateNode,
-        description = "Max height",
+        description = "Max height. Disabled if (socket connected or Restrict height is off)",
     ) # type: ignore
 
+    # !!! Inverted in UI. Named as in a CGAL library
     exclude_height: BoolProperty(
-        name="Exclude height",
-        description='Exclude height from calculations. (If you do not want change height to unlimit height)',
+        name="Restrict height",
+        description='Restrict height of object. (If no then all heights wil bu unlimited height)',
         default=False, update=updateNode) # type: ignore
 
     only_tests_for_valid: BoolProperty(
@@ -325,9 +326,25 @@ def draw_angles_mode_in_socket(self, socket, context, layout):
         # Временно отключено
         #grid.prop(self, 'angles_mode', expand=True, icon_only=True) 
 
+    def draw_ss_height_in_socket(self, socket, context, layout):
+        grid = layout.grid_flow(row_major=False, columns=3, align=True)
+        col = grid.column()
+        col.prop(self, 'ss_height')
+        if socket.is_linked==True:
+            col.enabled = False
+        else:
+            if self.exclude_height==True:
+                col.enabled = False
+            else:
+                col.enabled = True
+            pass
+            #col.enabled = True
+            pass
+        pass
+
     def draw_buttons(self, context, layout):
         col = layout.column()
-        col.prop(self, 'exclude_height')
+        col.prop(self, 'exclude_height', invert_checkbox=True)
         col.prop(self, 'only_tests_for_valid')
         col.prop(self, 'verbose_messages_while_process') 
         #col.row().prop(self, 'join_mode', expand=True)
@@ -358,6 +375,7 @@ def sv_init(self, context):
         self.inputs['ss_angles'].label = 'Angles'
         self.inputs['ss_angles'].custom_draw = 'draw_angles_mode_in_socket'
         self.inputs['ss_height'].label = 'Height'
+        self.inputs['ss_height'].custom_draw = 'draw_ss_height_in_socket'
         self.inputs['objects_mask'].custom_draw = 'draw_objects_mask_in_socket'
         self.inputs['file_name'].label = 'File Name'
         self.inputs['file_name'].hide = True