if (experiment == null)
if (experiment == null || !usingExperiment)
  private void unsetTrialValues() {    if (experiment == null)      return;    if (currentTrial < 0)      return;    Trial trial = experiment.getTrials()[currentTrial];    Property[] properties = trial.getParameters();    for (int i = 0; i < properties.length; i++)       properties[i].setValue(null);  }