Random Maps ???

[rsolow]

Is there any way to tweak the settings of Random Maps. From what I can see, my options are Small, Medium, and Large. I would like to be able to:

a) reduce the percentage of water provinces in my random map

and

b) generate a random map that is larger than the approximately 400 provinces that constitutes "Large."

c) have the map "wrap around"

Is any of this doable for Random Maps?