@zwawe

In main Menu, select "Install Windy plugins" and then "Flight planner"

Capture d’écran 2021-12-13 à 13.22.34.png

There is this tutorial
https://community.windy.com/topic/9071/weather-forecast-flight-planning-and-airspaces-at-once-a-great-extension-for-pilots?_=1639398796461