Yes. You can switch between different boat polars in PredictWind without losing your AI Polars.
For example, if you are sailing on a different boat, you can temporarily select a Predefined Polar or Sail Polar for that boat. When you return to your own boat, simply switch back to your AI Polars.
Your AI Polars are saved to your PredictWind account and will remain available when you switch between different polar options.