1. Are you talking about the AI and how many it keeps or are you talking about the rate of launch, or the total allowed in game per player?
2. It should keep the dome. The only way I know of to un-dome the population is to *cough* forcibly *hack-cough* the population which needs the dome. Ya sure there is. The log message telling you, you have just spaced the bas--er--population.
3. Why do you need a population transport? populations migrate on their own. I know there are still some Minster bugs so maybe you have found one. Or maybe the minister just doesn't want to do what the population will do on its own.
4. Nope...