> For the complete documentation index, see [llms.txt](https://docs.fly.trade/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fly.trade/flycn/guides/swap-configuration.md).

# Swap configuration

**Gasless feature** : 

fly.trade executes the transaction on behalf of the user, covering the gas fees, so the user doesn’t need to hold or pay gas in the native currency.

<figure><img src="/files/Xe1ymqD3Mu5toD1pEpdF" alt="" width="375"><figcaption></figcaption></figure>

This feature has two states - ON and OFF:&#x20;

* When the feature is turned **ON** – the gas fee is charged from the **Selected token.**

<figure><img src="/files/0gXkiVtKD8wKwln5XC3M" alt=""><figcaption></figcaption></figure>

* When the feature is turned **OFF** – the fee is charged from the **Native token.**

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

**Setting menu:**

In the **settings**, you can adjust parameters such as Slippage Tolerance, Liquidity Sources, and Bridges.

<figure><img src="/files/juR9J42oYpCgQNJCieev" alt="" width="375"><figcaption></figcaption></figure>

<figure><img src="/files/aCcpEl1xnyhQialsFGwZ" alt="" width="375"><figcaption></figcaption></figure>

* **Slippage tolerance:**&#x20;

  Allows you to set slippage tolerance that sets a limit on how much the price of an asset can change during your trade execution.

<figure><img src="/files/HhaFbusA1oEcylHIvy8U" alt="" width="375"><figcaption></figcaption></figure>

* **Liquidity sources:**

  Allows you to enable or disable liquidity sources that are supported on the connected chain.<br>

<figure><img src="/files/H3bAfj4LRreMf6OU5F7n" alt="" width="375"><figcaption></figcaption></figure>

* **Bridges:**

  Allows you to enable or disable the supported bridges.

<figure><img src="/files/hCkXWXnGMInF6t8GFtgO" alt="" width="375"><figcaption></figcaption></figure>

**Update quote :**&#x20;

Allows you to refresh the quote and get the latest prices.

<figure><img src="/files/Z5RephfIT93U2QtwYsSn" alt="" width="375"><figcaption></figcaption></figure>

**Switch From - To - From asset** :&#x20;

**Switch the "From" and "To" tokens (also switches networks).**

<figure><img src="/files/dpydyVJpSa0ZuSMzjNsV" alt="" width="375"><figcaption></figcaption></figure>

**Explorer link :**&#x20;

Redirects to the selected token's explorer.

<figure><img src="/files/fEcAms53CTABa2RbQNHO" alt="" width="375"><figcaption></figcaption></figure>

**Update recipient's wallet address:**\
You can change the address to which the funds will be sent.

<figure><img src="/files/3mdXupI8gvuVMH76dDjK" alt="" width="375"><figcaption></figcaption></figure>

<figure><img src="/files/9OVYN3DqD2nD09GvqsjQ" alt="" width="375"><figcaption></figcaption></figure>

**More transaction information:**

Here you can see more details about your transaction

<figure><img src="/files/UmnvMouf8k3WNwT0VoRm" alt="" width="375"><figcaption></figcaption></figure>

That's all for now, thanks for using fly! :tada: