Jacpin, it is really great to do diversification, but I see that you might have a problem with the broker or to limit your trading with one EA per asset.
However, do not be disappointed the laws are laws and we can not do anything about it.
But if this is the case you can look for diversification with different currency pairs….there are so many. As well you can go for the assets, stocks, indexes. The good thing is that EA Studio has no limitation about the assets and you can generate EAs for everything.