Adapting a route found on garmin connect

I was looking for a hike in the village were I'm spending my holiday.  I found one on komoot, but I can't download the GPX because this region isn't unlocked.  I found the same route on GC and I could put it on my watch, but I would have loved to adapt the start and finish to correspond with the place where I'm staying.  But apparently this is not possible.  Is this correct?