DislikedWhen you test dozens of Ea's, it's a nightmare to open so many demo accounts.
It's very easy to analyse results using the "comment" column. Morover, inside a single EA, you can analyse deeper if you change the "comment" according various strategies etc...
The best way is to download the account history in Excel, then select the column that contains the comment, then use data/sort by to sort by comment first, then you can secondly sort by symbol or entry time ect...
Use GetHistory (copy to expert/scripts) and drag it in any chart. The file...Ignored
I also test many EA's and IMHO it is ESSENTIAL to have each EA functioning under a totally separate account.
It takes all of about 45 seconds to open a new demo account, so very far short of a 'nightmare'.
Also the results from EA tests are run through external software to analyse a.o. correlation between pairs, return distribution curves, Monte Carlo simulation for future results, Annualised Sharpe ratio, day-end draw down peaks & troughs etc., all totally impossible using multiple EA's running on a single account.
Lastly I also use a completely clean copy of MT4 for each EA under test, so each EA has it's own copy of MT4 running in a separate directory. This means there are no possible errors from EA conflicts, Global Variable clashes, Trade Context busy errors as everything tries to grab attention at the same time etc, etc.
Hope this helps.
Best regards,