# 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.
This feature has two states - ON and OFF:
* When the feature is turned **ON** – the gas fee is charged from the **Selected token.**
* When the feature is turned **OFF** – the fee is charged from the **Native token.**
**Setting menu:**
In the **settings**, you can adjust parameters such as Slippage Tolerance, Liquidity Sources, and Bridges.
* **Slippage tolerance:**
Allows you to set slippage tolerance that sets a limit on how much the price of an asset can change during your trade execution.
* **Liquidity sources:**
Allows you to enable or disable liquidity sources that are supported on the connected chain.
* **Bridges:**
Allows you to enable or disable the supported bridges.
**Update quote :**
Allows you to refresh the quote and get the latest prices.
**Switch From - To - From asset** :
**Switch the "From" and "To" tokens (also switches networks).**
**Explorer link :**
Redirects to the selected token's explorer.
**Update recipient's wallet address:**\
You can change the address to which the funds will be sent.
**More transaction information:**
Here you can see more details about your transaction
That's all for now, thanks for using fly! :tada:
