Zoom in, Zoom Out and Step by Step Buttons on MT4 Charts

Zoom In

This option is located on the charts menu within the MT4 Platform. This option is used to zoom in the charts as shown below, some traders might choose to magnify a chart and trade when the charts are zoomed in depending on the preference of a trader.

Short Cut 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.

Short Cut Key (-)

Zoom out the Candlesticks in MetaTrader 4

Step by Step

This option is used to back test systems by moving the charts one candle at a time and then interpreting when to buy & when to sell a currency based on the system being back-tested. To learn more about this button, Read the tutorial: Back testing a Trading System using MetaTrader 4 Step by Step Button - its shortcut is key is "F12"

Step by Step button for moving Charts One Candle at a Time