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Now comes with a user interface which allows precise setting of the viewpoint, zoom, time control (step back doesn't work) and creation of new structures and drawings. Particles have random velocities and (almost) random forces, because these 2 areas have not been mastered in 3D yet.
Creating a new atom will remove all current particles.
Adding a sphere is very CPU hungry and may slow the simulation, other available shapes are "cube", "axes", "vertex".