I don't know if I'd ever try to change setup options after I got a game going, but it sure would be nice to be able to see the setup info somehow, perhaps via a Details button on the Load dialog box.

Something like that could be helpful for folks learning the game and for those of us who might put down a game for a long time and forget what we'd started with. 

p.s. I'm certain there's no 'UI kosher' way to change the setup choices of a given game, and nearly certain that there's no way to view them after a game is underway. 

  There is a multitude (well,  thoroughly thorough throughout ) of information in the tabs at the bottom of the screen: 

 Foreign relations tab: the "stats" sub-tab contains more tabs for data on each race,  such as "now researching",  "number of colonies",  "weapons bonus", "intelligence level" and

 Civilization manager: "stats and graphs" has sub-tabs and comparisons with other races and all the data on your own race.

If you mean how to start a new game with the same settings,  I find they are still there when you quit a game then go into the galaxy setup again.  Maybe somewhere there is a "restart" option,  like in the campaign scenarios?

  NP.  Too busy getting on with GalCivII?