MT4 charts can scroll one bar at a time from historical data to new data (step-by-step). This is a useful feature when simulating based on past price movements.
Preparation before using the step-by-step feature
If auto-scroll is enabled, turn it off via the toolbar or other settings.
How to execute the step-by-step feature
After scrolling to the desired historical point, press the F12 key on your keyboard to scroll one bar at a time.
