@Bernard-Okoński Hello,
Please keep the discussion respectful so we can help you effectively.
It is possible to add waypoints when planning a route in the mobile app. However, waypoints must be placed in locations where routing is possible (roads, paths, trails, etc.). Route planning cannot be performed through inaccessible areas such as private property, fields, or other places that are not part of the routing network.
You can find more information about route planning here:
Route planning
If you can send us a screenshot or describe the specific location where you are trying to add the waypoint, we'll be happy to take a closer look.