Almost done with the Flash development, this will give you the option to have multiple and independent for every element in Mach and as many as you'd like.
So you could have a floating Feedrate, estop and MDI and Mach in full screen on another monitor.
You could have a hundred monitors with each and every element of Mach
but currently the Toolpath and Gcode screens have to be together in the master Mach window
If your intrested in trying it out let me know, will have a Flash test screen done here in a bit for testing as well.