Resume saved tour and Follow saved tour

Hello I really like this app which helps me record my routes. But it would be better if the following features could be provided:

1) Now the app is designed as to create tours one by one. But sometimes I want to create more than multiple tours alternatively. So it would be better if I could resume a saved tour. This feature is also useful when I click the finish button carelessly.

2) One of the reasons for createing a tour map I think is to share it with yourself or other people. So it would be better if I could following my saved tour (which means the app should show my current position and show my current route against the saved route) and share the tour with my friends for them to follow my tour.

I would be willing to pay for that if these features could be implemented.