Change a point

Rename
  1. Tap .
  2. Tap on and select the desired entry.
  3. Enter a new name.
  4. Tap Save.
Move an entry in the list
  1. Tap .
  2. Tap on .
  3. Tap on next to the appropriate entry and move it.
Move a point on the map

You cannot change the position of a point. You can delete a point and create a new one instead.