I like the Trace Log, but when I evaluate my fly on the radar I use the finger to move it along the trace but if I stop the follow it go back on the top sky and do not stay on the trace , is possible that the aircraft remain on the trace to the position if I interrupt the moving ?

That's just the way it's designed. If you like, I could move this to the Suggestions forum, so we can see if others think it should work in a different way.