Did a comparison since I got very good result on a portfolio doing this Whatif scenario, drawdown was 50% lower but profit almost the same ( like holy grail).But It seems this plugin gives different result when done on a portfolio compared doing it one by one per strategy and merging them to a portfolio. I figured I test it one by one since the only way to implement this is using the max tradesperday setting in the strategy.
When you create portfolio manually Initial deposit = SUM(InitialDeposit of strategies). You can check it by adding InitialDeposit column to your databank.
To get the same results go to Results->Settings tab and recompute stats with the required Initial deposit.