I think he means change the window title when it starts up. E.g. call a diablo 3 window for Bot number 1 and then call another diablo window for Bot 2. You could do this in Diablo 2 by right clicking the shortcut, properties and in Target:"C:\Program Files (x86)\Diablo III\Diablo III.exe" -launch
You could add -title and then make your own title. Not sure it works in D3