Overview
The main teaching viewer begins with the selected case’s first stage. Next stage adds the next available information and tracings; Back returns to the preceding stage. Revealed measurements identify newly added data.
After the final stage, Next case and Random case become available. Exit case returns to the free-form simulator.
Data appear when the authored case reveals them. A missing PA, wedge, CO or saturation early in a case is not a zero reading and should not be inferred from a hidden later stage.