You mean custom vertical system with geoid grid? Please do the following: 1- Close all CC applications: Master and engine 2- open vertcs.csv in the following location C:\Program Files\Bentley\ContextCapture Center\data\gdal or C:\Program Files\Bentley\ContextCapture \data\gdal 3-copy and paste last line and change the EPSG code and geoid gtx name 4- Then copy the grid gtx file at the same location. 5-You will then be able to use the geoid model from now on as ‘Override vertical coordinate system’. See CC manual. Afterwards it is possible to export the custom coordinate system as file.
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