A time step is the combination of all single steps that occur at a specific point in time. A time step may consist of one or more single steps. The single steps included in the time step do not consume any time. A single step may be the activation of an event by the arrival of a process folder, or the transition of a function state from Process folders in static wait state to In process. The current simulation point in time on the Status tab changes at this moment. You can perform time steps while the simulation is paused.