I print 9x12 (concert) size pages.  I use 12x18 paper to print 2 pages side by side.  I just bought 12x27 paper (i call it triple concert) so I could print 3 pages side-by-side.  I can finagle a pdf to be printed 3-up in Preview (pdf software), I can't, for the life of me, figure out how to 3-up print from Finale.  I think most OS's are handicapped in that they only think you need to print 1-up, 2-up, 4-up, etc. But I need to be able to 3 pages side be side, a little easier that working my magic with in Preview.  Thanks!  

Jay Meachum

King, NC

Mac OS 10.11 / Finale v25 (the laster update)

Printer: Canon Pixma iX 6820 wide format printer