Melissa,
Yes. When adding equipment to the project, we are mainly focused on the emission device/equipment that holds the Performance data, not the body of things. With that in mind simply add the MP Rotor to your Irrigation Manager, edit that equipment and change the model name and description to your desired setup. Once this is done and you have placed your equipment, the schedule will reflect the changes you have made.
If you have further questions please let us know and we can go from there!