General Commands List?

Is there a good resource for finding available commands?
I'm new to journals and cannot find what I need in the help files.
Specificly, I would like to write a journal to filter for "item types" and "select all".

Any help would be appritiated.

The part class gives you access to a number of collections of item types (bodies, curves, dimensions, drawing sheets, sketches, etc etc). If you want to "select all" of a certain type of object, this is a good place to start.

If you have a specific problem in mind, I'd be glad to post some example code.

The SNAP Getting Started Guide includes a (very brief) introduction to NX/Open programming. The chapter is called "The Jump to NX/Open". It's chapter 16 in the NX9 document. The numbering was different in earlier versions, but I think the text was the same. It covers things like object collections, types, filtering, etc.