I'm not sure what you mean. The coordinates are seen along the edge of the map in the picture you posted. I created a blank mission of the area depicted you can open in the editor yourself and start adding things, I hope that helps you!
Visit this link and copy the text featured. Paste it into a blank .mu file and give it any name.
http://pastebin.com/Ezt003KT
You can open it in the editor!
Specifically this part:
Quote:
VERSION 3
OWNALLIANCE 0
DIFFICULTY 1
TOTALNUMSIDES 1
NUMDRIVEABLES 1
MONTH 1
WORLDGRID 2
LATLONG 31.090460 -117.904228
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