Jimmy,
Item #2 is possible today. You can disable these ciphers by going to Server -> Limits & Settings -> Encryption and then deselect the ciphers you wish to disable, including SSLv2.
We have a service release we are working on which should address #3 on your list and #1 & #4 are both on the roadmap, but no time frames I can provide to you at this point in time.