The Visual Editor can run input files. After selecting the name of the input file, click Run. While running, the number of particles and the total time is constantly updated. The run can be gracefully terminated at any time by pressing the STOP button.
When running in the Visual Editor, MCNP® executable on your system is not the instance being run. Instead, an internal version of MCNP® contained inside the Visual Editor is executed. Because of this, the Visual Editor to make "quality affecting" runs.