# Advanced Usage

- [Supporting opt-out and do-not-track](/techdocs/apis/frontend/implementation-guide-session-api/advanced-usage/spa-out-out-of-session-tracking.md)
- [Using external session identifiers](/techdocs/apis/frontend/implementation-guide-session-api/advanced-usage/spa-customizing-session-handling.md)
- [Adding support for multi-currency](/techdocs/apis/frontend/implementation-guide-session-api/advanced-usage/spa-adding-support-for-multi-currency.md)
- [Adding support for customer group pricing](/techdocs/apis/frontend/implementation-guide-session-api/advanced-usage/spa-adding-support-for-customer-group-pricing.md)