I installed Live 9 64 bit and the 32 bit version. If you start both the Live versions, just drag the 32 bit version to one monitor and the 64 bit to the other monitor. Start your project up in both versions, now you can set in one monitor the session view and in the other the arrangement view.
More on youtube: http://m.youtube.com/watch?v=t44xSVN_BzY
Dual monitor in Live 9
Dual monitor in Live 9
MacBookPro 15" MacMini I5, Ableton Suite 9 64/32 Bit, M-Audio Axiom 25, Akai APC20, Audio 2 DJ, Samsung 27", KrK Rockit 5, KrK Headphones, Kontrol S4, Ipad 2 TouchAble, TouchOSC, LoopTastic & Studio HD
http://soundcloud.com/djanciano
http://soundcloud.com/djanciano