7.6.7.13. 
Construction sketch
| ![[Note]](https://webapi.partcommunity.com/service/help/latest/pages/jp/3dfindit/doc/images/note.png) | Note | 
|---|
| Construction sketches are not
        exported. | 
To mark an auxiliary sketch as such, click on the Auxiliary sketch [Construction sketch] option in the context menu. To deactivate it, click on the option again.
In the 3D history [3D History], auxiliary sketches are marked with an 'H ' on the sketch symbol  symbol.
 symbol.
| ![[Note]](https://webapi.partcommunity.com/service/help/latest/pages/jp/3dfindit/doc/images/note.png) | Note | 
|---|
| Sketches
      already extruded or rotated, do not show the command. Incorrect sketches are automatically marked as an auxiliary sketch when they are saved. If the auxiliary sketch [Construction sketch] option is deactivated, the error symbol appears  . 
 
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