# Multi-instance coordination

The goal is simple: **avoid overlapping exposure** when you have several charts running. Instead of every instance being allowed to start its own chain whenever it sees a signal, you can force the account to trade **one coordinated SmartChoise chain at a time**, and/or pause instances when specific **Magic IDs** are detected.

{% hint style="info" %}

#### It’s designed to prevent:

* multiple SmartChoise chains running at the same time
* overlapping exposure across charts
* conflicts with other EAs or strategies on the same account

Use this group if you run SmartChoise on more than one chart, or if you want SmartChoise to coordinate with other EAs using Magic IDs.
{% endhint %}

{% columns %}
{% column %}
{% content-ref url="/spaces/ShpN5GtM9y91jd4mhvkb/pages/9umAuUuoMRoW1p10a23i" %}
[One SmartChoise chain at a time](/smartchoise-manual/options/multi-instance-coordination/one-smartchoise-chain-at-a-time.md)
{% endcontent-ref %}
{% endcolumn %}

{% column %}
{% content-ref url="/spaces/ShpN5GtM9y91jd4mhvkb/pages/uTX1g36INU7QKBnMWEI6" %}
[Pause if any open trade has these magic IDs](/smartchoise-manual/options/multi-instance-coordination/pause-if-any-open-trade-has-these-magic-ids.md)
{% endcontent-ref %}
{% endcolumn %}
{% endcolumns %}


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