The Residuals display will be created automatically and will show the progress being made by the solver.
The run progress can be observed by selecting the Scalar Scene 1 tab at the top of the Graphics window. Examine the distributions of each of the three phases by changing the scalar function regularly.
During the run it is possible to stop the process by clicking the 
(Stop) button in the toolbar. If you do halt the simulation, it can be continued again later by clicking the 
(Run) button. If left alone, the simulation will continue until all 500 time steps are complete. Note that the numbers displayed in the Output window represent the solver's inner iterations, not time steps. As there are 5 inner iterations per time step, you may expect the run to perform 2,500 inner iterations.