Dave, the "to be implemented" Favorite option(s) sounds good.
The Last Search is a workaround but as it not only "keeps" the search settings but also the items you searched for this is a rather "unoptimized" solution.
On the other hand, as the various Default fields need to be "fed" to FileLocatorPro before startup anyway, why not simply make these parameters configurable, as they are selectable from drop down boxes anyway.
Thanks and regards Thomas