Dear @david ,
I did a 16 hour ride yesterday and wanted to look up my moving time values for every 100 kilometres. As mentioned in previous threads, there is not much that can be done to solve this problem. I’m no programmer, but with the average speed (which only relates to moving time) you could calculate by dividing the distance of the interval.
For me this solution works quite well. Maybe something that could be adapted to your beautiful work so far!
Cheers, Markus