Using my P1801-T as a second monitor over USB with Splashtop Wired Xdisplay

[lucyferror]

Hi newbie to forum here. I've looked everywhere and can't find a solution at all. I own P1801-T (only tablet) for a while and it's an amazing device even considering old Android.
Recently I've discovered that I can use Android tabled plugged in to PC over usb as a second monitor. I did it with my 10 inch tablet (developer options and debug mode) and Splashtop Wired Xdisplay installed on my Windows 10 and app on tablet. Works without issues and I could extend my windows desktop over 2 screens. Problem is that 10 inch is too small (my main monitor is 24 inch). I wanted to use my P1801-T but can't connect it at all with PC.
I've enabled Developer options and USB debug but when I plug it in to PC it doesn't recognize or discover tablet at all. Asus website have only some weird drivers which I've also installed and nothing :/

Anyone have any ideas please?

[Juraj]

Its possible just wireless throughout the Space desk sencond screen app