I recently changed to a different broker and found the available currency airs (or symbols) were different.
Is there any easy way to :-
1. Access all Symbols from an EA
2. Check the availability of a Symbol from an EA
2) (old way) MarketWatch => Right-MouseClick => Show all (and https://docs.mql4.com/marketinformation/symbolstotal ) (b600+ might have a function to do this)
1) if Symbol is in the MarketWatch (2) you can get the high like iHigh("Symbol", TimeFrame, bar).