I need to print in black and red only. What do I have to do?
You'll need to learn to use pen tables and/or plotter files or manipulate your CAD file to just display the black and red you want.
The easiest way to do this, if you have a color .pltcfg file, is to use Level Overrides. Set everything to whatever color plots black (usually Color 0) and anything you want red set to the color that plots Red. This way you do not need to modify pen tables & .pltcfg files. Turning overrides on and off with the click of a button is simple in View Attributes.
Power InRoads v8i V08.11.07.615
Microstation CONNECT U11 10.11.00.36