all the above should be auto prompted?
That's how VS does it and it is quite useful. Unlike the named fields, for unnamed fields there is no other way to see those fields in the prompt, short of going back to the declaration in some other file.
BTW, C::B is a great IDE, very well thought out. I had to switch recently to a wider cross platform development (from previously only switching between Windows/VS & MAC/Xcode to include Linux now) and having tried all the IDE tools out there, C::B was the most pleasant and most natural among the alternatives.