To adjust the mode of transport:

  1. Tap on the trip you would like to change.
  2. Tap on the down arrow in the upper right-hand corner.
  3. A list of modes of transports are shown.
  4. Tap on a mode of transport to select it. The change is saved directly.
  5. Finish by first tapping the up arrow in the upper right corner, followed by tapping the left arrow in the upper left corner. 

It is possible to switch from activity to trip or vice versa. Above the list of purposes there are two tabs Trip and Activity which you can use to change between trip and activity. After you changed the type you need to select a purpose/mode for the change to save.