VR Spectator related Question-Need Help!

So I was using 4.15 till now to develop a VR car configurator and this is how VR preview appeared on my screen!

Nice sweet image with 2 screens, not practical but it lets me record the screen and play it on my phone as VR video
Now the case in 4.18

236247-caaapvrture.png

Nice sweet single screen, good for presentation videos but not good for VR phone vids

Now my question is how do I bring first split screen view in 4.18 , Help will be much appreciated !!