You can also use the built-in function in MT. There are 2 ways:
- Right-click a chart --> properties --> Common tab --> Show Period Separators. (This will set it up for a single chart)
- Tools menu --> Options --> Charts --> Show Period Separators (This will show for all new charts)
The period separator will show the beginning of each day if you are on an H1 or lower time frame. At H4 and above, it shows the beginning of each week.
Linear Mode
