Kanon gestört durch beibehaltene Pausenzeichen

Ich habe einen Kanon erstellt: Sopranstimme als Vorlage, versetzt kopiert in Alt, Tenor, Bass. Aber in diesen Stimmen bleiben immer noch Pausen (wie eine 2. Stimme) und beim Öffnen nach der Speicherung sind plötzlich einige Noten verschwunden, die kopierten Stimmen holpern beim Abhören.
Habe ich etwas falsch gemacht?
im engl Forum gelesen:
http://musescore.org/en/node/16827: As a workaround, however, you could write your canon out on 3 staves - 1 for each voice, add numbers to the 1st part to indicate where the voices come in, then hide the other 2 staves.
Submitted by Jojo-Schmitz on June 6, 2012 - 10:15am.
Should work, the infrastructure for that is in place. You reed the notes of a chord in a voice at a cursor position and add a chord in another voice at another cursor position (after having checked whether there isn't a chord already *!!??), add notes to it and mark it invilble, then progess to the next curser in the selection.
Difficulty is: how to define that other cursor position? For a canon of 4 bars, select 8 bars, read the first 4 and write the last 4?
You'd need to know how many voices/instruments it should have and how many beats they need to be appart, so some kind of GUI would be needed?

Gruss
pkj