You can use the SoC plan to charge your car from the battery storage.
To do this, you set a switch-on and switch-off threshold.
Example:
If you want to discharge your battery storage down to 20%, you can select a switch-on threshold of 25% and a switch-off threshold of 20%.
The charging session will start when the battery storage is above 25% and will stop again when it drops to 20%.
You can also start the SoC plan with a schedule if, for example, you would like to discharge your battery storage in the morning.