https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/246395/i-am-unable-to-detach-reference-in-open-roadhello, i have attached corridor.dgn file as reference file. but unable to detach reference file.en-USTelligent Community 12https://communities.bentley.com/thread/770034?ContentTypeID=1Sun, 18 Jun 2023 13:09:35 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:c38106bc-8352-4b98-8627-1c1adef52eaaMark Shamoun<p>Hi,</p> <p></p> <p>You are trying to detach a Managed Civil model so you need to remove its Default model as well. The only way to detach this is to select both the Default and Default-3D models at the same time and detach. Theres no way to keep the 3d model detached by itself in this situation. If you reattach the 2d model only, it will come back during Civil model operations.</p><div style="clear:both;"></div>