In the 747 we can alter the range of the Navigation Display. However in the MD-11 I can't find the control button for that purpose.I've included a relevant pictute attachment.Where is it please?Cliff

INCR/DECR buttons on the left hand side of the glareshield panel.

Once more.............thanks Dan.It's sooo easy when I know how. That's another slight levelling of my MD-11 learning curve.Regards...............Cliff