The quick field feature is one of those useful ideas I had, that even I have trouble remembering to use.
For those that aren't familiar with the idea, it basically lets you easily set a string that would be used in file names of subsequent captures.. So if you were going to take 10 captures related to a project, you might put like "ProjectA" in the quick name field and your capture files would be named "ProjectA - 001" then "Project A - 002" etc..
So your idea is a good one.. the real problem is that the post-capture pop-up dialog is getting crowded and big, and it's hard to keep adding stuff to it..