Special switches for the menu's track selection:

@R = Forces a new line in the track's description box. (row) This is like pressing ENTER in notepad.
@L = Uses the number in "Laps"-line. For example, in this textfile, Laps: @L would look like Laps: 4 in the game's menu.
@O = Uses the number in "Opponents"-line. For example, in this textfile, Opponents: @O, would look like Opponents: 5 in the game's menu.

Track menu