Creates a region of interest device [roi name] for [device].
Usage: Device Roi [roi name] [device] [x1] [x2] [y1] [y2]
[roi name] is the name of the roi.
[device] is the name of the device.
[x1] is the value of x1.
[x2] is the value of x2.
[y1] is the value of y1.
[y2] is the value of y2.