On iOS, when you go to Weather > Set Wind Conditons for Flight, you can manually enter the wind figures for all or individual legs.

It would be nice, if there was a button on that window to set wind to 000/00, rather than typing it.

Reason being, I often have to plan lots of flights in the future using still wind conditions (for example quoting for charter jobs many months ahead), and every time, I have to set wind conditions manually. Having a button to zero the wind would help by saving unnecessary key entry each time.

Alternatively, provide a wind toggle in the Weather drop-down, which would toggle between zero wind and actual/forecast wind.

Either way helps.