Groove Agent ONE - loop for fixed number of bars

Help!

I have created a VST/MIDI drum pattern using the Beat Designer in Cubase Artist 6. Great so far… can change synth to HALion etc… well cool and all that! The problem is I only want it to play for say 16 bars. Then I want a different VST/MIDI drum pattern (maybe on same or different track) to start and the first one to stop looping forever…

I hope I make sense?

I am a noobi to both Cubase and this forum so please be gentle with me. ;o)

Cheers
Jymbul