# Authorized trading

## The Authorized Trading feature allows Masters to execute trades on behalf of their clients (sub-accounts) using the FM platform using the GUI or API. 

### Use-cases:

1. Voice-Trading
2. Trading within your Master account

### How-to use

1. Go to 'Trading'
2. Click on the 'Operating as ... ' drop-down menu

<figure><img src="/files/yIElddpc95ziUrd3NPBP" alt=""><figcaption></figcaption></figure>

3. Search for the instrument you need to trade

<figure><img src="/files/snO3LFsInrtiH7NAtMJk" alt=""><figcaption></figcaption></figure>

4. You will see the order books from the sub-account's perspective. This will account for the limits set against the sub-account, markups and other Risk Management settings. Available order book will contain all of the active external LPs and the liquidity streamed via API

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

{% hint style="info" %}
You can access the order book through Feed F using Master API keys. Upon subscribing, specify the sub-account ID
{% endhint %}

5. Execute the trade on behalf of the client by double-clicking on Buy or Sell&#x20;

<figure><img src="/files/izQCFmXKP9ILQpBWQbI6" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
If you wish to specify the liquidity source for the trade, select the LPs in the 'CP enabled' widget in the top right corner.
{% endhint %}


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