Once you have set BB to 3 beats/bar, either by invoking a 3/4 style, or by using RightClick->Bar Settings, you can indeed try invoking one of the 4/4 realtracks styles and see if it works well in your setting or not. It will only play the first three beats of each cell, but often that works out okay even though the song now is in a three beat feel.

Of course, if you have found a 3/4 style that fills the bill already, no need to try the above, just wanted to point that out.


--Mac