How to display materials double-sided in Viewport?

[BeneZ]

Hello,

I was wondering, why in the Max viewport I can't see materials doublesided.
2-sided material is turned on, it renders properly in VFB, but in viewport I see them only single sided ...which makes hard to work on them.

Thanks

[hermit.crab]

I presume this topic from Autodesk would be of use: https://knowledge.autodesk.com/suppo...-viewport.html