Switch between DK2 display modes within 1 App/program

Hi,

I want to develop an interface which contains a sidebar menu and a window displaying the image captured from a webcam.

The idea is when the sidebar menu is appearing, Rift should be in "extended desktop mode", and when I double click on the image, Rift switches to "direct mode" to provide a 3D environment (with the sense of depth info.)

Not sure if this is possible with coding, so far the only way I know to switch between those two mode is through "oculus utility".

Thanks in advance for your help! :D