Enabling two sided material for 3D mesh files in Cocos2D-X - cocos2d-x

I am developing a 3D game with Cocos2D-X. I have converted .fbx mesh file into .c3b and .c3t file format using fbx-conv tool. I have imported these files into 3D scene and they are displayed properly along with the materials. I want these mesh files to be two sided. I did research but could not find helpful resources. Also, there is no Material Editor (present in UE4 and Unity3D) available in Cocos2D-X through which I can enable two sided property. How should I implement two sided mesh files in Cocos2D-X?
I’d appreciate any suggestions on this issue. Thank you in advance.

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viewer.getSelection()
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Unfortunately, the viewer isn't designed to support geometry modification. You can modify your design elements in these ways:
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https://forge.autodesk.com/blog/loading-multiple-models-forge-viewer-v7
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