Changing Optional Rules Settings

[bk6583]

I asked this question a looooong time ago and IIRC the answer was "no" - but I wanted to check again. Is there a file I can access that would allow me to change an optional rule (or more than one optional rule) after I've got several turns into a game? It seems there should be some way to access a game file and either change from "Y" to "N" or "On" to "Off" and vice versa. For PBEM, I can certainly understand the need to "lock" the optional rules down, but as someone who plays a combination of solitaire, hot seat with a neighbor, and against the AI, it's someone annoying to not be able to change optional rules mid-stride - please tell me there's a way to wicker this as I really don't want to start a game over just because I made a bad decison in choosing a particular optional rule.