It is indeed a long time, and I won't be able to remember how it all worked. One thing I can say though is that you can indeed disable the slide disk by deleting all that section in the menu and also replace the stopwatch with another if you do the same in the relevant part of the menu (Andput any custom TGA file used by the new stopwatch in the proper folder).
The menu file opens in notepad or wordpad, you can do a back up and giv it a try, it's not that hard. Use the search function to find the slide dial section and delete it, should be pretty evident where it starts and finishes. Then do the same with the stopwatch and replace it with the one for the menu you want, just copy and paste instead of the older one.
