Not sure whether I missed that feature or a corresponding feature request.
I often refer to persons when citing them e.g. Müller (2003) instead of (Müller 2003). I know the “suppress author” button. However, there should also be a button to add the author in front of the parentheses automatically, e.g. Müller (2003). I have used such a feature in “Docear for Word” some months ago and it was very convenient.