On my Garmin Edge 500 I was able to edit my Totals.fit file via the fit sdk, and then copy it back to the device and it would reflect the edited totals.
On the 520 I have updated to the new multi total format, using the FIT sdk. When I copy the file back to the device the 520 just over writes the file with the old values. Is there a way to edit the totals on the Edge 520?
This is handy for cases like last night where the battery ran out, and I tracked the rest of ride on my Fenix 5x, but would like to add the km to my 520.