Hi Patrick and thank you for your interest in this application,
If you need to edit multiple points, be sure to activate the "Edit mode": https://www.alpinequest.net/en/help/v2/ ... of_a_route
(sorry this page is a bit outdated).
This way you'll be able to move your points in 2 taps.
Note that the application is always working with the map center dot, which is much more precise than a big finger, this is why you're always asked to move the map center dot over the destination location.