An EStop displays an EStop button model. The EStop is only provided in the simulation as a guide and is handled at the hardware level so does not have any events associated with it.
From the Toolbox, simply drag and drop an EStop into the simulation.
From the Project Explorer > Equipments > EStop.
Or directly in the simulation.
Scale X: Scale X dimension of the EStop.
Scale Y: Scale Y dimension of the EStop.
Scale Z: Scale Z dimension of the EStop.
None