I've tried searching for this seemingly obvious topic. The following article has been the most accurate and detailed I've found so far for what I'm trying to do (see Benu's reply):
It's from Jul 2015, so not too old. Except it describes a left dropdown list and right dropdown list in the User Preferences, next to individual shortcuts, which I do not have. Nor a "double click" option. I'm just finding my way around Blender, version 2.76b. Best I can do is selecting "Mouse" in the device dropdown list and enter "Right click" (or left) as event. No other fields.
What am I missing?