When I do the above, it just adds a line to my config.pro. I would like to load a search path not included in my search.pro path, for assemblies. In past rev's of pro-e was able to open the search.pro and browse, save etc, seems with CREO this isn't a option anymore.
The early versions of Creo 2.0 didn't have the same function as Wildfire - i.e. a drop-down box to select individual config files. I don't remember which datecode they returned that functionality to, but it is available in M070 and beyond.