Selects a symbol in the Market Watch window or removes a symbol from the window.
bool SymbolSelect( stringname, // symbol name boolselect// add or remove );
[in] Symbol name.
[in] Switch. If the value is false, a symbol should be removed from MarketWatch, otherwise a symbol should be selected in this window. A symbol can't be removed if the symbol chart is open, or there are open positions for this symbol.