Im not getting the option of screen 2

[Jonathan003]

I tried to follow this tutorial:
https://youtu.be/XnME4U7xEZA?si=Q0ofVcbTRmh1OHsP&t=220
Everything goes fine until I need to select screen 2

There is no screen 2 to to select on my PC

I use a Widows 11 Pc and I want to use my Samsung Tab 8 as second monitor.
It works to use my tablet as monitor, but it just mirrors everyting on my Windows Pc.
I want to drag a window outside to se this window only on the display of my Android tablet.
Maybe I need to adjust some settings?

[ereyhan60]

@Jonathan003 You need to buy a dummy HDMI or dummy DP, there is a guide for this on their website. I use linux and looking for a way to achieve without using any hardware.