shiranp wrote i wish to change the key (actually thats works great) but the problem is that I need to restart the server each time I do it
the devs have discussed a
similar proposal .. but don't hold your breath ..
As an option you can concurrently run a selection of server configs on one host
each with different keys, ciphers, ports etc ..
You may be able to get an update out of the devs on the mailing list or irc channel.