Is there such software? Who met?

Question

Windows

Good afternoon.
I’m looking for such software (although it probably doesn’t exist, but you never know), it’s hard to describe ... I’ll try to show in the picture and not describe much =)

I’m sitting at the table, I have 2 monitors (1 and 2) - one computer
For 1 a normal desktop (I need to poke around in programs, etc.)
2 monitor just as an additional one.
To display some kind of slide show on User computers. I open slides and drag to monitor 2 - slides are displayed on User monitors.
I scroll through the slides, they scroll on the User monitors.
It's all ok. All right.
User computers have a wireless mouse and keyboard.
But sometimes it is necessary that the User sitting at the computer can scroll through the slides himself.
I take the usb-adapter from the User's computer, insert it into the computer (1 and 2), move the cursor to the 2nd screen and the User can easily flip through.
But when the User flips through the slides, I periodically need to open / close something on screen 1.
It turns out that the User loses control over the mouse, searches, panics, presses the buttons ...
On screen 1, I control the program and all sorts of windows pop up at the same time, because . User panics =)
You have to quickly do something on 1 screen and drag it to 2, until the User goes completely crazy =)
In general, there may be some kind of software that can divide 2 mice into 2 monitors.
One mouse controls its screen, the other controls its own. No conflicts with another mouse =)

Answer 1

Such software is called a "second computer" ;-) Put there software that spins presentations, and if necessary, control this second computer through some TeamViewer / VNC / Radmin.