I've checked Road-hog123's post about aerial image and hear are few questions I want to ask:
- Is there any way to import my custom map as the aerial image? (except openstreetmap, google, bing)
- I tried the link attached (http://aerial.gcmods.de/toquad.php?x=~x&y=~y&z=~z&apicode=[YourAPICode]), it can only apply on google images. Can I make my openstreetmap image higher resolution?