John, thanks for the info. My concern was at the moment, with my limited knowledge, I hear a two to the bar bass line only on the first and last chorus. I set up a tune for practicing and will punch in 20 to 40 choruses; four to the bar for so many consecutive choruses gets real tiring ... for me and for the bass player.

It would be great to be able (and perhaps I can) to vary alternating choruses with two to the bar and four to the bar bass lines.
By the way, I should receive the full package tomorrow via UPS. I'll give the owner's manual a good read when it arrives.