Comment 5 for bug 1203329

> I had a look into this. I tried to persist all fields that were used in the lua interface.
I do not understand what you mean by this - could you elaborate?

> So is it ok to persist only these fields, and is it ok to forget about the flags and current road building?
sure - currently nothing is saved. Saving only a bit seems better to me. The correct approach of course would be to save the state of the UI to save games (open windows and so on), then Lua could just piggy back on this. This is a big more work though - the UI was not designed to be savable.