How to enable Sequencer Cinematic Viewport?

I saw that new Sequencer tool has a cinematic viewport option in UE4 viewports, but I can’t find how to enable it. I just have default top/left/perspective/etc modes over there but no Cinematic option. I enabled Sequencer and reloaded UE4 and created a new Sequencer, but still there is no Cinematic Viewport anywhere.

It will probably be in 4.12, lot of features Epic shows on streams was not added yet when 4.11 feature set was assembled, main reason why it miss out so many features is fact that 4.11 was in preview stage or quite long time.