Well now Neco doesn't have to! Introducing the online Island Defense CustomKeys.txt generator.
http://id.rory.io/keys/
Simply follow the instructions and you can make the hotkeys be anything you like.
Future Features:
Modifying in-game tooltips to match your hotkey changes.- Include more hotkeys such as buildings and items.
Shorter sharing links.
If you find a problems feel free to post in this thread.
Free cookie to the first person to make a 3.0.9d share link!