MT5 charts can be scrolled step by step, moving one bar at a time from past data to the latest data. 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 using the toolbar or other options.
How to use the step-by-step feature
After scrolling to the desired past point, press the F12 key on your keyboard to scroll one bar at a time.