The idea is simple. Since you can connect a magnet to some metal to create a chain. I thought. Why couldn’t you split an electric engine. If you could connect the magnetism from a device outside the engine. Then this device could be optimized specially for creating magnetism and not be subjected to construction restraints from inside the engine. Maybe the device could serve several electric engines making the system more effective. If this works I think it would be cheaper than to use a lot of copper wire that would otherwise be involved in creating the magnetism.