[juras]

 Yes, press C or bring up the context menu from your remote.  Select 'Play Using' and a list of the players will show.
All players have a configuration for using 3D and for automatically selecting the preferred method of 3D formats.  If you don't want to watch a 3D format using a players preferred method, change it to off.  This works fine for a 3D Frame Packed MVC iso for example.  I don't know what you're going to do with a 3DSBS.mkv for example?  It's probably going to show two side by side images.  This is yet another reason I use Full Frame Packed rips in an iso.  Maybe someone else knows how to play a 3D.mkv in 2D simply.  I don't.  A quick google search led me to this though https://play3d-2d.blogspot.nl/2014/02/3d...layer.html but I didn't try it as I have no use for 3D in 2D personally. 

 Hi brazen1

Thanks once more for your Help

Now i have everything working as it should