Upload a SeeYou .cup or a plain .csv of outlanding
fields and airports. You get a four-character code. Type it into GlideRange
on your watch and it downloads the sites for offline use.
Your watch discards this from the server once it has synced, and anything not synced is removed within 24 hours — the server does not keep your data. Save the edit token only if you want to update the list during that window; it is shown once and cannot be recovered.