Voucher to be created for the same order but with 4 detail lines

Hi All,

Appreciate your thoughst on the below scenario.

Have a Non stock Purchase Order for $100 with a Tax

Received the entire order

Now i need to create a voucher (not partial vocuher) for the same order but with 4 lines Say ( line 1 $25, line 2 $25, line 3 $25, Line 4 25$ and last 3 lines shoudl have different tax code.