Dave,

You can copy, cut and paste within Biab. You can also use the .seq button to re-channel any recorded parts (2nd, 3rd, 4th voices) from the melodist track etc. Biab also has a midi harmonizing utility that will also add harmony parts to the existing melody notes.

Takes a little digging on how everything works in Biab, but it can be done from within Biab.

Trax