It has been my homework to code multi-currency EA.
Now I have been trying to convert my template to multi-currency pair.
Multi-currency pair function is better because if you want to run EA on many currency pairs at the same time, you don’t have to open many charts.
Instead, you can just open 1 chart (any chart, any time frame is OK) and attach EA.
That is all.
Just open EU and attached EA. Reading indicator signal, EA takes orders with multi-currency and attack martin and trailing stop also works fine.