In script code, there are two aspects of try/catch/finally logic that are missing in Keyword tests.
1) The ability to "throw" exceptions manually
2) The ability to include the contents of the...
FYI, I'm working on trying my normal "trick" of creating a script extension to do this... and not having much luck... I have to basically have a piece of script code create an exception and send it to the Catch block... but there's no visibility to that catch block from within the script extension. So... would be nice.