Hey Tony -
I don't know of a way you can do this. I'm curious though - why would this functionality be useful to you? Are you doing something like basing one extract off of another?
Did you manage to figure what order it does the refreshes? Is it constant or random....just curious!!
I have one extract that I want to make sure that runs first. It has some initial SQL that builds a few temporary tables that are referenced by the other extracts. I guess I could alwasy cut-n-paste the intial SQL to the extract that ends up on the top of the list. I'm just trying to make sense out how they are ordered.