you're welcome

many improvements is thanks to you, so I thank you very much for reporting and support

. I at the end, added only two panels on top, because when you shift map center and do not hide bottom panel, there is very low space above bottom panel for next panel, so I think, top part is fine ...
about overshoot. Yes, I filter all data before start point and after end point manually. I don't know why MapQuest return these data.
also In navigation is not voice command like "after x metres turn right then after Y metres turn ..." etc. Hope this will be helpful. MapQuest data are very nice because it contain also info like "keep in left line" or "exit highway" etc, so I think it's going to be fully working navigation now. I know, big disadvantage is required internet connection for route compute but I think it's not such big deal. And you can compute route at home in worst cases ...