> For the complete documentation index, see [llms.txt](https://guide.moontrader.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.moontrader.com/en-moontrader-docs/interface-basics/link-system.md).

# Link System

The link system controls where a chart opens. You assign a link to a tab and to a region — and charts opened from that tab go where you want them. Without any setup, every chart lands in the same region.

#### Key elements

* **Region** — a container for tabs. Has a name and a link
* **Chart tab** — displays a trading instrument, for example BTCUSDT
* **Tab** — a system tab, for example «Market Live» or «Balances»
* **Link** — the binding identifier. Seven colour-coded links are available: A, B, C, D, E, F, G

<figure><img src="https://2194691319-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPMuOulAKIicy77MPPDXF%2Fuploads%2FINEOy7gZkFOQxGicdAx2%2FLink%20System%20-%20Active%20Links%20-%20ENG.png?alt=media&amp;token=b0491559-8102-4174-9111-18126df4ba93" alt=""><figcaption></figcaption></figure>

#### Senders and receivers

**Receive charts**

* **Region** — the chart opens as a new tab inside the region
* **Chart tab** — the tab content is replaced with the new instrument

**Open charts**

Double-clicking a row in these tabs opens a chart:

* **Orders**
* **Trades & Positions**
* **Reports**
* **Market Live**
* **Management**
* **Trading Performance**
* **Alerts**
* **Notifications**

{% hint style="info" %}
The «Balances», «Algorithms», «Autostops», «Triggers and Actions» and «Autobuy» tabs have no links and do not open charts.
{% endhint %}

#### Link states

* **Default** — the element works in the common group. A tab in the «Default» state opens charts in a region in the same state
* **Unlinked** — the region or chart tab is excluded from the link system. Charts never land there
* **Links A–G** — the element works in the group with that link

{% hint style="info" %}
The «Unlinked» state is available for regions and chart tabs only. Other tabs do not have it.
{% endhint %}

#### Setting up a link

1. Open the link picker on the tab you open charts from
2. Select a link, for example A
3. Open the link picker on the region where charts should go
4. Select the same link A

**Result:** double-clicking an instrument in that tab opens the chart in the selected region.

<figure><img src="https://2194691319-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPMuOulAKIicy77MPPDXF%2Fuploads%2FOsgZjHqNjiUnYeqgEUqa%2FLink%20System%20-%20Assigning%20a%20link%20-%20ENG.png?alt=media&amp;token=4e382ab4-4859-46af-9800-3f8f66626eef" alt=""><figcaption></figcaption></figure>

#### Chart tab priority

Region and chart tab links work independently. If a region has link A and a chart tab inside it has link B, each one receives charts by its own link.

If the region and a chart tab inside it share the same link, the chart goes to the tab. The chart tab always takes priority.

#### When no target has the link

If a tab has a link but no region or chart tab with that link exists, the terminal creates a new region with that link. The chart opens there.

#### Several targets with the same link

If several regions or chart tabs share one link, the chart opens in all of them at once.

#### Active links

The link picker has an «Active links» section. It shows the links already used on other elements. The section helps you find the right link when setting up a binding.

#### Moving tabs and regions

When you drag a chart tab from one region to another, it keeps its link.

When you drag region A into region B, all tabs move to region B. Region A disappears together with its link. The links of the moved tabs are preserved.

#### State on first launch

On first launch the terminal has two regions:

* **«Default»** — contains the BTCUSDT chart tab
* **«Unlinked»** — contains the system tabs

{% hint style="info" %}
Region names can be changed. The names «Default» and «Unlinked» match the link state of the region on first launch.
{% endhint %}


---

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