class Thingo < Shoes
  url '/', :index

  def index
    button "Open Thingy" do
      # In fact this open Thingo.
      Thingy.app
    end
  end
end

class Thingy < Shoes
  url '/', :index

  def index
    para "Here your are dear friend!"
  end
end

Shoes.app

# So, is this possible to have two subclasses of Shoes and open them from one
# to another ?