Civil 3D 2021/2022: No Longer have the option to lock a viewport with a right click Menu

May 7, 2021 Jeff Arbogast


When you select a Viewport and right click in Civil 3D 2021 and 2022 you no longer have the option to lock or unlock the Viewport.


This is as designed.



Option 1 Use properties Palette

  • Select the Viewport.
  • Right click.
  • Select properties.
  • Use the lock/unlock features on the Properties Dialog.


Option 2 Add the menu using the ACAD.cuix

  • Type “CUI” in the command line and select the <Enter> Key.
  • Select the “Transfer” tab at the top of the Dialog.
  • Have the Main menu “C3D.cuix” selected at the top of the left menu area (This is normally there by default).
  • On the right Menu area select the  “Open” button at the top.
  • Select ACAD.cuix from the c:\Users\<User Name>\App Data (This is a Hidden folder)\Roaming\Autodesk\C3D(2022 or 2021 depending on the version you are working with)\enu\Support\.
  • Open the “ACAD.cuix”.
  • On the right expand “Shortcut Menus”.
  • Find “Viewport Object Menu” and expand this section.
  • On the left expand “Shortcut Menus”.
  • Expand “Context menu for edit mode”.
  • On the right highlight and hold down on “Display Locked” under “Viewport Object Menu”.
  • Drag and drop this menu into the “Context menu for edit mode” area.
  • In the location you would like the Menu to appear.
  • Select “Apply” and “OK”.

Now test the menu. You should now see the Viewport Lock/Unlock option in the Viewport right click contextual menu.

About the Author

Jeff Arbogast

Manufacturing Solution Center Team Lead<br><br>Jeff is responsible for manufacturing Technical Support for both internal staff and customers. In addition to the daily activities of the support center, he helps write for the National Support Center blog, and has written online classes for the IMAGINiT training on demand site.

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