Export Part to DXF with multiple views in single file

[NirVid]

The methods described in https://www.codestack.net/solidworks-api/import-export/export-multi-formats/ were extremely helpful. But can you explain how I can export 3 views of a part in single file? I am using PartDoc.ExportToDwg method. Even when my Views array contains 3 views and ExportToSingleFile = True, the generated .dxf file contains only 1 view.

Am I missing any setting / option?