Bentley’s MicroStation is a popular Windows OS CAD software used in infrastructure projects that has been in use for over 20 years. In order to have the functionality of the software’s file-locking capability with LucidLink, the following configuration change must be made in the LucidLink Control Panel: 

• The MicroStation file extension dgn must be entered into the File locking extensions list under Global Defaults while logged into the Filespace as a LucidLink administrator. After doing so, click the check mark to save the change.
• Failure to make this change will result in no locking to occur amongst users opening the same dgn file, resulting in the potential of users overwriting other users’ work on the same dgn file (last write wins). 
• Note: If using MicroStation to edit AutoCAD files (dwg extension), this file extension is already entered as a file-locking extension by default.