Zoom in, Zoom Out and Step by Step Buttons on MetaTrader 4 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 select to magnify a chart & trade when the charts are zoomed in depending on the preference of a trader.

Short Cut Key (+)

Zoom in The Candlesticks on the MT4 Platform

Zoom Out

This option is located within the menu as shown below: this option is used to zoom out charts & is used by traders who prefer to trade the chart using minified charts according to their preference. This option is illustrated below.

Short Cut Key (-)

Zoom out the Candles in MT4

Step by Step

This option is used to back test trading 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 MT4 Step by Step Button - its shortcut is key is 'F12'

Step by Step button for moving Forex Charts One Candlestick at a Time