2 monitors on laptop?

I connected an additional monitor to my laptop with the function of expanding the display. This only works with a program with subroutines, it doesn't work. I can move the main display of the program back and forth, but as soon as I want to drag a subroutine in this program, it doesn't work.

I've never tried something like this myself, but I've read about certain tools that might help:

https://www.pcwelt.de/...54785.html

https://www.pcwelt.de/...38118.html

https://www.lecturio.de/magazin/multi-monitor-setup/

Perhaps you will find an adequate solution there for you.

But as soon as I want to draw a subroutine in this program

How is that meant?

He means window in window, for example work areas, etc.

Which program is it?

Ah understand. What is not possible with one BS is of course not possible with two BSs either.