With PortfolioRunner you can manage multiple portfolios simultaneously. This will allow you to experiment with different sets of stocks and to check a quality of predictions you made yourself or any other forecasts you want to try out. It is also useful to vary strategy choice and risk management settings.
Auto simulation is the portfolio option that you can enable in order to allow PortfolioRunner performing trades in automatic mode. Auto simulation, of course, is the tool for virtual portfolios. After enabling this option and until it is disabled all trades at the PortfolioRunner (but NOT in reality!) will be executed without prompting a user.
So you may want to create virtual portfolio in accordance with any of your predictions, enable auto simulation and then leave it for some days, weeks or even months. PortfolioRunner will automatically use generated recommendations and execute them in accordance with preferences you set up. In some time you may look at the results and it may help you to make conclusions and better understand the market, or even build your own strategy!
Auto simulation, for example, is used in Demo account portfolios and also in PortfolioRunner support team portfolios that are monitored in order to improve existed and check the quality of new strategies.