Download tweaker on my website: http://www.colinsenner.com (click "Scripts" at the top)
Changelog from version .08:
- Now includes support for tweaking any property controller applied to an object
- Includes support for tweaking the sun/sky system hours and days, to select the entire assembly you need to use the "Pick List" button.
- Includes minor UI tweaks, like the ability to not display all of the images after the renders are done, thanks for the suggestion Br0t.