I made a new system today, it's called the Clock System, it simulates time, unfortunately, a human object cannot orbit another human object in a very stable orbit (and therefore the orbital parameters won't work right, as that might be a bug), so I chose to make an Earth sized body as the main body, and the smaller bodies are cue balls (which are unfortunately not round enough and need improvement in the next update) orbiting the main body, which is named Clock.
Each cue ball has a specific name and orbit duration, and unfortunately, due to the main body size and the distances of each smaller body (as well as orbital issues), the time step had to be increased to 100000 seconds/sec, so everything had to be increased by a factor of 100000, so everything is 100000 times longer, but it (and their small masses) does help make their orbits stable.
Here's the simulation.