C#: Autocompletion doe not work for event methods

Default (event) methods are not autocompleted (like: "OnTriggerEnter2D", "OnLevelWasLoaded", "Start", "Update" ...) is there an option for these to autocomplete? It would make life easier. (I don't know all the possible method names by heart).

(I tried "Sync MonoDevelop Project" but it doesn't resolve the issue)

rgds,
Dave