Hej,
> Its been done for the SOTA maps see here
https://www.sotamaps.org/
> click the "GRIDS" tab and select the type of grid wanted, so the
> overlay details must already be available ....
That looks very nice and I am playing around with kml overlays at the
moment.
But maybe it would be an option to build that into
aprs.fi directly so
that you can choose to activate it just like on sotamaps @Hessu?
vy73 de Florian DF2ET