Is there a way to make certain fields be required based on the current workflow step or status?  For example, I don't want to 'Close' a defect if the 'Resolution' field is not filled in.  Or, similarly, I don't want to close a defect if the 'Date Fixed' field is not filled in.  However, neither of those two fields can be filled in on the first 'Save' when a defect is opened.

Currently using version 7.0.2.7191 and going to be upgrading to 7.1.2 tomorrow.