void updateWPData() {
   for (WaypointNav WP : app.mw.WaypointsList) {
     if (WP.MarkerId.equals(MarkerId)) {
       WP.Altitude = Integer.parseInt(ETAltitude.getText().toString());
       WP.Parameter1 = Integer.parseInt(ETParameter1.getText().toString());
       WP.Parameter2 = Integer.parseInt(ETParameter2.getText().toString());
       WP.Parameter3 = Integer.parseInt(ETParameter3.getText().toString());
       WP.Action = SpinnerAction.getSelectedItemPosition() + 1;
       return;
     }
   }
 }