Is there a way to switch monitor contents between each other ?

Hi,

So my current step has 2 windows 10 PC and two monitors.

PC-A (my old one) is connected to 2 monitors
while PC-B (the gamer one) is only connected to monitor B

I frequently end up taping the "switch source" button in monitor B to go from PC-A to PC-B or vice versa, i tried to find a software-solution for this but didn't find any help.

However, am hoping for a solution for this issue :

PC-A is connect to Monitor-A and Monitor-B, i want to know if there is a way to flip the whole content between
Monitor-A and Monitor-B ?

The reason am asking for this is because I frequently found the need to access a tab or a folder that is already opened but its in the monitor section that is currently showing the other pc content (if there is a trick to bring a specific content from a monitor to another, without accessing the other monitor then plz let me know)

thank you

EDIT:
Found a solution

I am currently using two softwares :

- DisplayFusion

The first allow me to solve this issue :

i want to know if there is a way to flip the whole content between
Monitor-A and Monitor-B ?

It doesn't literally switch content from one monitor to another, but there is a function that allow you to bring every Windows from all your monitors to your currently active monitor (the one your mouse is in), which turned out to be really handy.

and the second software is :

- Mouse Without Border

Which is a lighter simpler and FREE alternative of Synergy, the only downside of it is that it's Windows-Only but I am a windows-only user so i don't care

As far as I know that can not be done with software, not the way you want to do it anyway. The monitor can only look at one input source at a time and that's a hardware function. The only way you could do it via software would be to remote desktop into PC B so its desktop can be shown on PC A's monitor.
Or on PC A, press the Windows Logo Key and the P key, and then select PC Screen only. All open windows will then move over to the monitor set as the main display.

You could try this and see if it still works on Win 10

Download Microsoft Garage Mouse without Borders from Official Microsoft Download Center

Mouse without Borders is a product that makes you the captain of your computer fleet by allowing you to control up to four computers from a single mouse and keyboard. This means that with Mouse without Borders you can copy text or drag and drop files across computers.