How to synchronize stock charts?

By synchronizing charts, I mean displaying the same date on several charts by simply clicking on one of these charts.

For example, when you click on a bar that corresponds to January 12, 2009 in chart 1, the other charts that are synchronized with chart 1 will display a line that references the same date (or the nearest one).

This way, you know exactly what happened to the different stocks on the same date.

Steps:

(Your charts must be linked to the same symbol index or time-frame index)
- In the bottom of every chart, click on "S" and select a link index
- Click on one of these charts to see the other charts move

When aligning or synchronizing stock charts, there is no difference between choosing a symbol index or/and time-frame index.
The only difference is that if you specify the same symbol index, a change in one chart symbol will instruct the trading software to assign the other charts with the same symbol.
If you specify the same time-frame index for a group of charts, then a change in one chart time-frame will instruct the trading software to assign that time-frame to the other charts.