def init_actions
      am = action_manager()
      am.add_action(Action.new("&Disable selection") { @selection_mode = :none; unbind_key(32); bind_key(32, :scroll_forward); } )
      am.add_action(Action.new("&Edit Toggle") { @edit_toggle = !@edit_toggle; $status_message.value = "Edit toggle is #{@edit_toggle}" })
    end
def init_actions
      am = action_manager()
      am.add_action(Action.new("&Disable selection") { @selection_mode = :none; unbind_key(32); bind_key(32, :scroll_forward); } )
      am.add_action(Action.new("&Edit Toggle") { @edit_toggle = !@edit_toggle; $status_message.value = "Edit toggle is #{@edit_toggle}" })
    end
Define actions that can be popped up by PromptMenu or other menubar
 Currently, only PromptMenu, but we can start contextually appending to Menubar or others