One thing which comes to my mind would be DoubleCommand, but iīm not sure if it can do what you want.
http://developer.apple.com/library/m...56/_index.html
Could also be useful
For G700(and most other keyboards) there is Logitech Control Center for OSX from Logitech.
Look for LCCKCHR.rsrc. Drop this file into /Library/Keyboard Layouts, logout and login and you have a few more options in the International System Preferences under Inputs.
Thatīs the only things i can think of, if that doesnīt help i hope someone else has a solution for you ;)
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