The Closed Trades Profitability Chart assigns your P&L based on any rules you did not adhere to. This is where you can see the real cost of undisciplined trading. Note if a trade breaks more than one rule, you will see the P&L represented multiple times in this chart.
For example, if you have a trade, where
路 You broke your trade loss limit
路 You traded in a longer losing streak than you agreed
路 You opened a trade while you had a large number of trades already opened than you agreed.
In this case, the loss on the trade will appear against the 3 rules that were broken.
This view allows you to examine all your trading rules, to understand if breaking any particular one is costing you more money than others. You can then have the information to revisit your risk management and your strategy.