Here's some ideas to improve the Economy Overview.
- Show deposits without a mine built (such as newly discovered iron) as a level 0 "mine" so you can easily find them
- Add a section for Population so you can find your pop buildings, check their level, etc
- Add a section for storehouses so you can find your storage buildings, check their level, etc
- Make it possible to buff buildings from the production overview
- Add deposits without mines - stone, granite, etc so you can check how many you have active