I often install apps just for minutes or hours, just to test them out, and then uninstall them, or buy the Pro or Donate version, and any apps I install stay permanently in the "My Android Apps" list. If I have the paid version installed I don't want to see the free ones in my list anymore, and if I didn't like an app and uninstalled it I also don't want to see it cluttering up my list. Does anyone know how to remove the unwanted apps from my list at Google Play (My Android Apps)?

I chose my Android Market name very quick originally just to get it out of the way, but now I want to change it to another name. I don't see how to do this though, can anyone tell me if and how this can be done? It would be very appreciated.