Booklet Print out

I have a score I made up from another, i has a Soprano, alto, baritone parts and a piano part so there is 5 line in the music. the original had 2 sets of the parts and piano on one page one above the other like in the version i have attached. but i would like to put 4 sets of parts on like a legal 8.5x14 in landscape mode so i can fold in the middle of them and create a booklet. Is it possible with the program or do i need to make copies of the sheets in letter size and put them together on the copier. Example in picture Capture.jpg right now at each vertical black line is a new page what i would like is one page from red to red line.