Having right-click menus can be nice, but commands available only in right-click menus goes against all user interface guidelines. I have found a few such things in IDEA, but I bet there are many more, since the ones I've found are quite fundamental.
So, why can't stuff only be in the right-click menu? Because there is not even a hint of such a thing before you actually open it, making the command impossible to find for one who is looking for it. (Stuff that the user "simply has to know" are usually, but not always, a sign of a poor UI.)
And before you give in to your urges to flame me, read a book on UI design (i.e. get a clue), and if you still want to flame me then go ahead :)
- Marcus Sundman