Is it possible to control mouse pointer in other browser windows using socketio or similar tool

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Node.js

socket.io

Hello, I like to play this game called agar io in which you control the your cell using mouse pointer. I want to ask

If I have two windows open of this can i use coordinates of my mouse pointer in the first window to control my cell in another open window ?

I know you can use Socket io to emit and broadcaste mouse movements !

is there a way I can do this

What I have tried:

I tried some codes using socket io but it didn't work. I am not a expert programmer :)