Mirror without Copy

You can use the Mirror without Copy tool to mirror 2D entities across an axis or 3D elements across a plane.

To mirror entities

1. Click Mirror without Copy (How).
   

   Activate Mirror without Copy in one of the following ways

   • Menu bar: Edit

   • Keyboard: SHIFT+CTRL+I

   • Toolbar: Basic Tools Edit flyout
2. Select the elements you want to mirror.
   

   • To select a single element, click it.
   • To select elements in a region, use the left mouse button to open a selection rectangle around the elements you want to select
   • To include all the elements in the current document, click All in the Input options or press CTRL+A. Please note that this option is not available for all tools.

   For more information on the options available for selecting elements in Allplan, see Selecting elements, overview.

   When selecting elements, you can use the Filter Assistant to apply a filter based on element types and/or properties. For more information, see Filter Assistant.

3. Define the mirror axis.
   In the case of 3D elements, you need to enter another point to define a plane.