routes.rb

module ActionDispatch
  module Routing
    class Mapper
      module HttpHelpers
        def any(*args, &block)
          map_method([ :get, :post, :put, :delete ], *args, &block)
        end
      end
    end
  end
end

MyApp::Application.routes.draw do
  resource :account do
    with_scope_level(:member) do
      any :dashboard
    end
  end
end