Hi Sam,
I wouldn’t try to re-optimize a robot that is no longer working. It is better to create a new robot that works under current market conditions. This can be done using EA Studio. Having said that if you are just going to use Petko’s 3 Portfolios and not use EA Studio what you will need to do is just eliminate the EA’s that are not working and wait until next month when Petko uploads the new portfolios then the new portfolios will replace to old ones.