The title is pretty descriptive... Is there any extension that let me see FULL documentation of the method I'm typing ? I would like to see the documentation as I can see it in Object Browser with description of parameters and everything not just some "summary".
Of cause with an option to see all overrides. It may be part of intelisence or I don't know what it does not really matter.
I'm sorry to say, but the answer is no. I can say this with confidence because I myself spent many, many hours looking for such a thing. Good luck.