If the requirement is a windowed map, my MFD won't help you. But the source code is included, so you can try to make a windowed mode yourself.
But yes, my MFD allows up to 10 targets, which will then also display the ground tracks for said targets.
Beware that the map track function calculates the orbit of the vessel, so you're basically running a separate spaceflight simulation inside Orbiter. Therefore, for many (> 5) vessels, you will start to see a performance hit. You can try to increase the angle step in the configuration to reduce the number of calculations.