My idea would be to put on the screen smallish touch  buttons either side of existing "waypoint in use text" at the top of the screen that would be + and - allowing previous and next to be quickly selected in flight.

Also on subject of waypoint text, does anyone else find the existing text very small, and sometimes difficult to read in adverse light with the varying backgrounds and colors of moving map happening. I personally would like to see an increased font size for this text especially if we are able to select next and previous per my suggestion above.

best regards