JavaScript: restrict suggestion list for var/object

Is it possible some how to restrict suggestion list for specific variable?

For example i have Jquery plugin.

(function ($, undefined) {

    var config = {
        variable1: "",
        variable2: ""
    };

    var methods = {
         method1: function (options) {
         ...
          },
          method2 {
              ...
               config.<AFTER DOT IN SUGGESTION LIST I WANT TO SEE HERE ONLY: variable1, variable2>
          },

          method3 {
              ....

               methods.<AFTER DOT IN SUGGESTION LIST I WANT TO SEE HERE ONLY: method1, method2, method3>


          }