I have spent quite some time in customizing IntelliSense, including using the Foxtools.fll functions to manipulate text in the VFP code editing windows. If there's specific functionality you're having difficulty implementing, let me know. I might have some code to assist you.

For instance, I have code that imports into Intellisense your own UDF's, so your function libraries give syntax assistance just like the native VFP functions. No big deal. But if I can help, just let me know.