Hi Ethan. Derived profiles have the capability of doing what I had proposed with my multi-level file scheme (that I proposed in my email of Monday 5/11). Whereas my file scheme would have specially marked fields in file A pointing to data in file B, derived profiles would have specially marked fields in file A which would refer to a method (somewhere) which just returned the data that would have been in file B.
We could even make an optimization, similar to what I do for my XML default setting,. In the default setting, we can specify a "hardwired value" or a method to calculate a value. In the above example, the "data in file B" would be a "hardwired value". Both derived profiles and XML default setting can calculate dynamically-determined data as well. Thanks, Jack