I want to add additional info of my town. Currently I have the 'edit details' options disabled. The Video tutorial & help pages are out dated with older version of Google Maps. What should I do to enable the setting?
Not quite sure what you mean by you have edit options disabled...
But to edit a places details you do the following:
I'm not sure if this is what you wanted but if it's not please edit your answer with a better explanation to the problem and then comment on this answer.