# Overwrite Mode

Overwrite mode allows you to manually input timeframes to personalize the signals. 

### [Timeframe string specifications](https://www.tradingview.com/pine-script-docs/en/v5/concepts/Timeframes.html?highlight=timeframe#id2)

Timeframe strings follow these rules:

* They are composed of the multiplier and the timeframe unit, e.g., “1S”, “30” (30 minutes), “1D” (one day), “3M” (three months).
* The unit is represented by a single letter, with no letter used for minutes: “S” for seconds, “D” for days, “W” for weeks and “M” for months.
* When no multiplier is used, 1 is assumed: “S” is equivalent to “1S”, “D” to “1D, etc. If only “1” is used, it is interpreted as “1min”, since no unit letter identifier is used for minutes.
* There is no “hour” unit; “1H” is **not** valid. The correct format for one hour is “60” (remember no unit letter is specified for minutes).
* The valid multipliers vary for each timeframe unit:

  > * For seconds, only the discrete 1, 5, 10, 15 and 30 multipliers are valid.
  > * For minutes, 1 to 1440.
  > * For days, 1 to 365.
  > * For weeks, 1 to 52.
  > * For months, 1 to 12.

  <figure><img src="/files/Ls8mm52OTnUPYwXg7XgV" alt=""><figcaption><p>input settings</p></figcaption></figure>


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