how do you add window to the end of the command line
Right click on the shortcut to the game, choose "Properties" and the line Target will look something like this: ["C:\Program Files\Amazin\Amazin.exe"]. Add the word window to the end of that line, after a space. If that line is in quotation marks like my example, you want to be outside the quotation marks. So you end up with: ["C:\Program Files\Amazin\Amazin.exe" window]. Then hit OK and it should work!
Of course your actual folder names will vary, don't change what you have.