A scroll bar for the luxuries in the city screen, just like the improvements and wonders scroll bar.
This would allow mods to have more than 8 luxury resources. Right now, if a city is connected to more than 8 luxury resources, you only see a certain random 8 of them in the luxuries box on the city screen for that city.
Also, I had a size 12 city with no happiness improvements connected to 12 luxury resources. Now, this should theoretically be 12 happy citizens, right? What it had instead was 6 happy citizens and 6 mad citizens.
So if the game is geared to only accept a certain number of luxury resources or such, I wish they would un-hardcode that certain number and let you change it in the editor too.
So to sum it up, that is three things:
1. A scroll bar for the luxuries displayed in the city screen.
2. A check into game mechanics to make sure luxuries are giving their proper benefits. (12 luxuries = 12 happy citizens?)
3. Add the number of luxuries figured into AI calculations to the editor (default of 8, should be able to make it smaller or larger).