public void AddStepResult(Step step)
{
if (!StepResults.Any(sr => sr.Step.SelectorId == step.SelectorId && sr.Step.Value == step.Value))
{
StepResults.Add(new StepResult(step));
}
else
{
var stepResult = StepResults.First(sr => sr.Step.SelectorId == step.SelectorId && sr.Step.Value == step.Value);
stepResult.Attempts++;
}
}