I use natbib with the "numbers" option for citations and I would like to have a citation style that combines author-year and numeric.
For instance : "Author 1 et. al.  (2015)"
Is it possible with natbib only? It doesn't seem to be possible by default. I can define a new command to do it by combining citet and cite but I would like to avoid it as it is not native and makes me lose autocompletion on citations in my editor.