Having a single, global "Simulation Stop" button in the interface would help to speed up debugging and enhance control when breakpoints are in use. With breakpoints, several portions of the interface become non-responsive to user clicks, the Stop button being one of them. In some unfortunate cases, a chunk of a process or code might become an unintended infinite loop. When that happens, FlexSim crashes or has to be killed manually, not allowing for any recovery in the same session.