> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/nfc-wallet-sdk-ios/additional-features.md).

# Additional features

Use these optional features to extend your NFC Wallet SDK integration.

### Summary

* [Reset the NFC Wallet SDK](/nfc-wallet-sdk-ios/additional-features/reset-the-nfc-wallet-sdk.md)

  Delete all NFC Wallet SDK data stored on the device. Reset is local only.
* [Add wallet transaction data](/nfc-wallet-sdk-ios/additional-features/add-wallet-transaction-data.md)

  Attach 14-byte wallet transaction data to a Mastercard contactless payment.
* [Configure Visa CVM priority](/nfc-wallet-sdk-ios/additional-features/configure-visa-cvm-priority.md)

  Control whether Visa prefers Online PIN or CDCVM. 
* [Handle Visa Multiple AIDs](/nfc-wallet-sdk-ios/additional-features/handle-visa-multiple-aids.md)

  Read available AIDs and update their priority and lock status for Visa cards. 
* [Collect logs with secure logger](/nfc-wallet-sdk-ios/additional-features/collect-logs-with-secure-logger.md)

  Collect NFC Wallet SDK logs in the application sandbox for troubleshooting.


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