# Settings of the Order Book Modules

Modules are added to the workspace through the Order Book menu in the sidebar. In this case, the order of the modules corresponds to the selected order in menu. A new module opens on the left side of the working space.

Every module possesses a proper settings panel:

<figure><img src="/files/1QUFdNI0ZnMAxHHRAISz" alt=""><figcaption></figcaption></figure>

it also has a drop-down list of settings:

<figure><img src="/files/G27odcmfai7t4rydcsYR" alt=""><figcaption></figcaption></figure>

### Modules Settins with the Numerical Values

The settings panel has two types of fields for the entering values:

* **Scale** — Scale scaling for the creating a histogram.
* Time — Time range in seconds that specifies the size of the sliding window.

**Settings in the Drop-Down List**

The drop-down list contains the following set of settings:

| Setting                    | Description                                                                                                        |
| -------------------------- | ------------------------------------------------------------------------------------------------------------------ |
| **Large Number Notation**  | Enable the display of numbers in the 1K format instead of 1000                                                     |
| **Show the total volume**  | It shows the sum of the module values ​​in the Bid and Ask zone at the bottom and top of the corresponding element |
| **Show the ratio scale**   | It shows the "delta-difference" between the total values ​​in the form of a histogram                              |
| **Show the maximal value** | It shows the maximum module values ​​at each price level                                                           |


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