On the main panel, click on the "Premium tools" icon and select the tool for managing and importing technical documentation. After the right information panel is displayed, in the "Import" tab you need to select "New Import" and fill in the mandatory data (Import Name, File Format: VGI, DGN, DWG, DXF, DWF, GML, KML, KMZ, VGI, GeoJSON, WKT, SHZ, SHP, Technology Profile for VGI files and Projection). Then attach the selected file and press the import button. This tool is one of the paid premium tools and is available for users with a purchased service package.