It would be very useful to me if there was an option to update my sailing GPX track that I have uploaded via "Upload KML, GPX..." tab and shared with friends. Currently I have to upload a new file daily and send a new link, quite inconvenient.
By the way, it would be perfect if there was a functionality in Windy to download my track from SPOT locator directly without me acting as a middleman, but I guess that is something for the future.