Division of entries

Dear colleagues, I am trying to find a quick method to divide the four items. The only solution I found was to do it manually note by note and change the item assignment. Do you think there is a more effective method? Thank you

Ciao @pasquale.amico, create four new players for soprano alto tenor and bass. Select (filtering out the lyrics) and copy the music from the original 2 staves with Command(Control)+C. Select the first bar in the soprano right click > Paste Special > Explode you may need to correct something, after, and copy the lyrics afterwards.

Thanks sweetheart, it should be the ideal solution.