Hi Christiaan If I understand your problem correctly, you want to be able to update the model export from Microstation into Lumen without losing the Lumen content? I believe this is possible, I have done it before (not without some issues) but I do find the exporting of large models is quite problematic. In theory, if you re-export the model from Microstation it should update the model object in your existing Lumen live cube, providing the file names match and the location of the Lumen file remains in the default location. If you move the file to another location it doesn't work. As for the content not exporting, I have experienced this with Lumen Cells which I placed in Microstation not exporting or not exporting correctly (I have had trees come into Lumen displaced by 90 degrees). Generally I place the additional content in Lumen rather than in the dgn file. Hope that helps. Wendy
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