It would be nice if U2 would have a features To generate random Gas clouds and protoplanetary disks.
take an example, if you want make a very own solar system but totally randomised you would select the gas clouds feature, a list of know gas clouds would appear but also the option to make a random gas cloud.
When you start the simulation you will see how the gas is comming together by the force of gravity, after running the simulation for a while a new star is born, this one will have automatically a protoplanetary disk(there will be a protoplanetary feature too, also randomized) .
If your running the simulation even longer then you would see that the remains of the protoplanetary disk will pull on other small bodies and form slowly rocky planets, gas planets, moons and astroids.
Do you like this idea, has something to be changed? Put that all down in your comment.