> For the complete documentation index, see [llms.txt](https://docs.vechain.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vechain.org/core-concepts/wallets/sync2/user-guide/settings.md).
# Settings
## Switch Language
1. Click **Language**
2. Choose your language from the list
3. Click to set your preferred language
## Change Password
1. Click **Password**
2. Enter your password to authorise the password setup
3. Enter your new password
4. Enter your password again for confirmation
## Biometric Authentication (Mobile only)
1. Click **Biometric Authentication**
2. Enter your password
3. Biometric verification
Following scenario required your biometric authentication
1. Wallet action(remove, backup, generate, import)
2. General(change password, enable biometric authentication)
3. Signing a Transaction or certificate
## Token List
1. Click **Tokens**
2. Choose the token from the token list
3. Toggle on to enable
## Nodes Management
Nodes are the primary communication bridge of the blockchain. If the default node's connection speed in your region is not ideal, you can manage it in the following ways.
### Add node
1. Click **Node**
2. Click  at upper right
3. Enter the node's url with `http` or `https`
4. Click **Add** to add node
### Change Node
1. Choose the node from the node list
2. Click to set your preferred node
### Delete Node
1. Choose the node from the node list
2. Click to delete the node
---
# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.vechain.org/core-concepts/wallets/sync2/user-guide/settings.md?ask=&goal=
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