Zoom in, Zoom Out and Gold Step by Step Buttons on MT4 Charts
Zoom In
This option is located on the charts menu within the MetaTrader 4 Platform. This option is used to zoom in the charts as shown below, some traders may select to magnify a chart & trade when the charts are zoomed in depending on the preference of a trader.
Keyboard ShortCut Key (+)
Zoom in the Candles on the MetaTrader 4 Software
Zoom Out
This option is located within the menu as shown below: this option is used to zoom out charts and is used by traders who prefer to trade the chart using minified charts according to their preference. This option is shown below.
Keyboard ShortCut Key (-)
Zoom out the Candlesticks on Meta Trader 4
XAUUSD Trade Step by Step
This option is used to back test systems by moving the charts one candlestick at a time and then analyzing when to buy and when to sell gold based on the system being back tested. To learn more about this button, Read the tutorial: Back testing a System using MT4 Gold Step by Step Button - its shortcut is key is "F12"
Gold Step by Step button key for moving Charts One Candle at a Time