omega95 wrote in Tue Jul 15, 2014 10:36 pm:Unless I figure out (without copying the mapstructure.nas file into the A380 directory and making changes there) how to make the canvas ND an "airbus" ND, I will probably end up removing it and placing the airbus ND from my A330s/A320neo (and the old A380).

The wiki article should answer that question and even provide specific examples.
But frankly, even if you were to copy MapStructure.nas a 100 times and modify it, it would have to do nothing with the ND - MapStructure.nas is just the back-end, sort of like a "driver". While the actual ND is implemented in a separate file. The right file to look at in this case is $FG_ROOT/Nasal/canvas/map/navdisplay.styles
Details on implementing your own ND are provided here:
http://wiki.flightgear.org/NavDisplay#Custom_ND_StylesIt's mainly a matter of 1) opening the SVG file (e.g. in Inkscape) and customizing it for Airbus symbols & features. Next, you'd want to edit the "styling" hash and add a new entry there for any custom symbols/layers and animate those, according to the descriptions, for example:
http://wiki.flightgear.org/NavDisplay#A ... w_featuresAs you can see, editing MapStructure.nas won't help you with the ND at all