> ## Documentation Index
> Fetch the complete documentation index at: https://docs.quanorix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Settings

> Four tabs: General, Instruments, Blocks, and Sessions — per-user defaults.

# Settings

**Settings** stores **per-user** preferences in the database. They are the starting point for Generator, portfolios, and display — they do not replace per-run overrides.

<Frame caption="Settings · General. Click to zoom.">
  <img src="https://mintcdn.com/quanorix/2kJanlhXKp9-dfu0/images/es/settings-general-dark.png?fit=max&auto=format&n=2kJanlhXKp9-dfu0&q=85&s=019a38f3000b05f5d14446ab890ceb91" alt="Settings General tab" width="1184" height="844" data-path="images/es/settings-general-dark.png" />
</Frame>

## Tabs

| Tab             | Contents                                                                               |
| --------------- | -------------------------------------------------------------------------------------- |
| **General**     | Capital, risk %, commission, slippage, default spread (points/bps), **jobs retention** |
| **Instruments** | Contract / lot / point overrides; **broker aliases** for export                        |
| **Blocks**      | Building-block availability for generation                                             |
| **Sessions**    | Session filter (engine TZ) + **display timezone** (`display_tz`)                       |

Use **Save** on each section when the UI asks for it.

## General

* Cost and capital defaults used when opening forms.
* **Jobs retention (days):** history under [Jobs](/en/jobs/overview); `0` = do not purge.

## Instruments

<Frame caption="Settings · Instruments. Click to zoom.">
  <img src="https://mintcdn.com/quanorix/2kJanlhXKp9-dfu0/images/es/settings-instruments-dark.png?fit=max&auto=format&n=2kJanlhXKp9-dfu0&q=85&s=7b7c092755d7c8fa5bd9a07cda3d4630" alt="Instruments tab" width="1184" height="844" data-path="images/es/settings-instruments-dark.png" />
</Frame>

* Override MT4-style metadata (contract size, point, lot bounds). Empty fields = catalog default.
* **Broker aliases:** map canonical symbol → broker name when [exporting portfolios/bots](/en/export/mt4-mt5).

## Blocks

<Frame caption="Settings · Blocks. Click to zoom.">
  <img src="https://mintcdn.com/quanorix/2kJanlhXKp9-dfu0/images/es/settings-blocks-dark.png?fit=max&auto=format&n=2kJanlhXKp9-dfu0&q=85&s=5e7d21512cdc6843ffc9f644664cfbd3" alt="Blocks tab" width="1169" height="6368" data-path="images/es/settings-blocks-dark.png" />
</Frame>

Enable/disable block families available to search. Disabled families should not enter new generations.

## Sessions (critical)

There are **two** different timezones:

1. **Session filter** — affects *when* the engine may trade (Asia/London/NY presets, windows).
2. **Display TZ** — only how times are **shown** in tables/charts/HTML reports; does **not** change the backtest.

Full guide (broker vs tester, `InpBrokerGmtOffset`): [Sessions and timezones](/en/settings/sessions-timezones).

## Relation to Generator / Portfolios

* Generator **Reset** restores form defaults (does not rewrite these tabs).
* Portfolios inherit/edit capital and per-member costs; Settings provide the baseline.
* After changing TZ or aliases, **re-export** EAs if you already have old bots.

## Next

* [Sessions and timezones](/en/settings/sessions-timezones)
* [Generator](/en/generator/overview)
* [Export bots](/en/export/mt4-mt5)