Recently I manually rebuilt the software on my MacBook Air. I re-installed Usenapp and then copied over a previously saved copy of folder Library/Applications Support/Usenapp which I assume holds user preference information amongst other items. On running Usenapp and opening its Preferences -> Advanced window, I noticed none of settings I had made earlier were present, e.g. X-No-Archive, Organisation, X-Face etc. Are these items stored elsewhere on the system? Maybe inside the Usenapp.app package in /Applications?