FlyXC.app : Change radius of a waypoint

[gcerquant]

I would love to be able to change the radius of a waypoint.

I often use the app to plan my xc-flight. And the default radius (400m) is often too small.
On some points, I know in advance I will fly near them, but depending on the conditions this day, not exactly. Having to manually skipp to next waypoint is inconvenient.

And I know a few schools that organise competitions, official or with students, that can't use FlyXC.app (but would love to) because they can't change a waypoint to a large radius.

[gcerquant]

Related: rename a waypoint #334