The window "Particle Inspector" for a specific particle can be opened by selecting the particle with the right mouse button. In this window, the velocity components and the coordinates can be entered numerically. In addition, you can enter the parameters "radius", "charge", "mass" and "elasticity factor".
The latter factor determines whether the particle reacts during a collision event completely elastic or completely inelastic (E-factor = 0). All displayed values are updated constantly by activating the monitor button. The selected particles can be fixed and unfixed and its trace can be enabled or disabled.