No! If you set the historical data to 1/6/2023 to 30/10/2023 and select OOS equal to 40% it will use the 1/6/2023 to 30/9/2023 (the sample historical data) to find strategies with profit factor of 1.2 or greater. It will then take these strategies and trade them from 30/9/2023 to 30/10/2023 (the out of sample historical data time period/the next month). The strategies with profit factor of 1.2 or greater in the out of sample time frame will show profitable traded strategies during the next month. When you look at the strategies in the Collection tab the green area is the performance of the traded strategies over the next month (from 30/9/2023 to 30/10/2023). You can then add the best ones to the portfolio.
Alan,