It detects the most important daily, weekly, monthly and yearly levels that you would have hard time to find yourself.
It is leading indicator and plots ahead of time (day, week, month, year) and its static, does not change.
It is a rule based system of its own and allows you immediately to evaluate the situation and project the likely move.
You can use as a trading system on its own.
On daily you use monthly (daily candle has to close above certain level to confirm breakout)
On 1-4 hours you use weekly
Timeframes up to 1 hour you use daily .
Higher value relationships between 2 consequent days or weeks values (fair price) zones S3R3 means trending market. Narrow squeeze of value zone within previous value zone predicts . Expansion of consequent value zone predicts ranging market.
I used GBP index as example - with one look you can see easily detect that weekly value of GBP is too expensive and selling might start from this point.
One needs some practice to learn to use it...