I haven't tried it myself yet (just got SH4 a week ago), but after taking a look into the SH4-files in MyDocuments, I think you will need to tweak the following files:
- in
...\My Documents\SH4\data\cfg\UPCInitial, the file
CareerTrack.upc
- in
...\My Documents\SH4\data\cfg\SaveGames\000....00X, another
CareerTrack.upc
....where
000..00X is the
last modified folder you find in there.
There are more .upc-files in those folders, but I guess only the last one modified really counts...and the general one I mentioned in the 1st location.
Open the .upc's with Wordpad.
Hope this gets you a little going, would love to hear back with results.