How to change name XAU to GOLD in this indicator

HI, forex mate, how do I change this indicator common name for pair XAUUSD to GOLD name, my forex broker XM use GOLD name instead XAUUSD, if use this indicator in GOLD, it can't load properly the line, very appreciate any one have knowledge MQL4 skill to edit it.

P/S--I have change the SGD pair name to GOLD, but still does't work

I studied only a little, but try to change "GOLD" and "GOLDUSD" to "XAUUSD.

Perhaps this should be set to true?

extern bool GOLD = false;

I'm no MQL coder so take that with a grain of salt. lol