Okay, we use the @ tab of the data card pretty exclusively so when data is entered on the configuration specific tabs it wreaks havoc on our users. I have a few parts that have been checked into the vault with configuration specific properties that I would like to remove, so I do this:
Check out the file
open the properties window
navigate to the custom properties tab
remove the unwanted properties entirely
view the data card to see my changes have remove the properties from tabs other than the @ tab
check the file in
The problem is when I view the data card after all of this the properties still exist...??? Where is the option to clear the values?