$(AppConfig)/ActionScript 3.0/Classes and FlashDevelop

Hi there
I have set up a development environment in flashdevelop.
Everything is all good, but I am wanting to link to the core flash classes that are currently used in cs4 natively.

eg $(AppConfig)/ActionScript 3.0/Classes

this is preferably so I can make use of the hinting features when using the flashDevelop IDE

anyone have an insight to this issue.