SeeYou Mobile Question (units)

I've just started to look a little closer at the features and settings
in SeeYou mobile. What I can't figure out is how to change the units
for the distance numbers that show up next to the waypoints on the
map. These are the ones that get a green box around them when you're
within glide range. I'm assuming the units are kilometers. Anyone know
how to change this? I've been through the user manual, but there's no
reference to this map feature at all. At least not that I can find.

Thanks,
Dave