Go back Ruby Mine IDE

Multiline to single line



change 
  [
    :line1,
    :line2,
    :city,
    :state,
    :postal_code,
    :country_code
  ]
to

[:line1, :line2, :city, :state, :postal_code, :country_code]

select array and press
 control+shift+j     (osx)