In Preferences under Audio/Playback and Recording it allows you to set the audition length in seconds. Maybe if you increase it you will get a longer audition? I looked for something similar under the MIDI sections but couldn't find any so hopefully this does the trick !?
Will
Intel Core i7 3820, 16GB DDR3, Emu 1212m, 1.6+TB HDs
WIN 7x64, SONAR ext X1d, Vegas Pro 11,
Sound Forge Pro 10c, various others