Use Samsung Q9FN PiP function (picture in picture)?

Hello I have a Samsung GQ55Q9FN TV How can I use the Pip function there?
That I can watch Ps4 and TV as in the picture above

Nothing in the manual?

The PIP function with two programs is only possible if your Smart TV has a twin tuner. For Smart TVs without this function, the source of the main picture must be a component or HDMI connection. The input resolution must not exceed Full HD (1920 x 1080).

https://www.samsung.com/...l-schauen/