I want to be able to browse the source and set a debug point without having to hunt for a way to get the file open. I know you can open the original source and detach/reattach the debugger but that is a pain to do every time you run.
If you remember the name of the method you want to debug by heart, you can Add New Breakpoint (Ctrl+B) and type "MyClassName.MyMethodName" (enter). That will put a breakpoint in the beginning of that method, and when you run, as soon as it's hit, the file will open.