Saving aircraft trails in littlenavmap

I would like to have a single map/file showing all the flights I have done. Any suggestions on how to do it. If make a flight plan each time the old trails disappear

I know this isn’t exactly what you asked, but I use this site for creating a global map of all my flights. It was posted in the forums a few months ago but I can’t seem to find it. Just have the link I saved.

I hope this helps.

Use Skydolly to log, save, and replay GitHub - till213/SkyDolly: Sky Dolly connects with Flight Simulator 2020 and records flight paths and basic instruments for later replay.