Given that all 15 stages have been defined you can now validate each individual stage so as to ensure they are physically reasonable and so limit the potential for convergence issues during the analysis. This validation process can be carried out using the procedure outlined in the 'Parameters Tab Best Practice' article, and the Stage Preview feature at the bottom of the Installation Stages tab. In order to activate this Stage Preview capability simply click on the relevant stage in the stage list and the preview window will then automatically update to reflect the alterations made to the model in the selected stage. The figure below shows the Stage Preview for stage 8 of the analysis and as you can see the line configuration passes all the necessary validation checks. The same should be the case for all other stages.
Stage Preview for Stage 8