I was reading an earlier thread about a notepad clone being put inside of ZC, and while I don't think THAT's practical, I have a suggestion that may be.
It's a bug report feature for quests. Say you encounter a bug in a ZC Quest. You press a button and a small text box pops up. Type the nature of the bug, and it will be stored temporarily. When you exit the quest or exit out of zc, a file called <questname>_bugs.txt will be generated. It will include all of the bugs in this format.
<Number of Bug>
Map: <Map you were on when you encountered the bug>
Screen: <Screen you were on when you encountered the bug>
Description: <Description given of bug.>
Having the map and screen for the bug can help the quest developer quickly track it down.
Anyone have anything to add to this suggestion?