As to the native feature like that, you're free to make a suggestion to uservoice: http://oxwall.uservoice.com/forums/13756-ideas-for-oxwall if it gets enough voice, we'll consider implementing it. In the meantime this is considered as a custom plugin development. You will need to do that on your own or hire a programmer.
I'm not encouraging you to, but seems like review will reflect the current state of the plugin which is negative.